• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An electrical infrastructure system for a vehicle, comprising a plurality of electronic control units (ECU) for one or more functional units (30n) of the vehicle, said ECUs being interconnected via a network (32). The infrastructure system is configured to implement a condition map including various operating conditions for the vehicle. The infrastructure system is configured to receive one or more inputs (34) to at least one ECU. The at least one ECU is configured to analyze said input signals by means of transition conditions and to determine an operating state Sn for the vehicle and to make a certain operating state available on the network (32). Each ECU includes a state module (36) which includes a unique set of state rules SnRm for each of the operating states Sn, and wherein the state module (36) is configured to identify current operating state Sn of the vehicle based solely on said state rules and apply these state rules, wherein n. The invention also includes a method of implementing the system described above. (Figure 2)
    公开号:SE1450179A1
    申请号:SE1450179
    申请日:2014-02-17
    公开日:2015-08-18
    发明作者:Hannes Lindstrand
    申请人:Scania Cv Ab；
    IPC主号:
    专利说明:

    2 energy converters and energize yourself, your transceiver and any other components.
    The devices connected to CAN can be activated or "awakened" in various ways. Partly through messages via CAN or via separate signal lines.
    WO-2009/054769 describes a network configuration for vehicles for interconnecting a number of control units via a network. The control units have condition components that influence the control units to switch to an active or passive state depending on the state mode that exists for the vehicle.
    The term operational states is used today to easily define which ECUs are awake in a certain state and what is allowed in each state. In vehicles today, the operating conditions are normally based on the position of the key and the status of the battery. ECUs are awakened and kept awake in the different states by means of different signals from different signal lines, which are activated by the key mechanism.
    In the future, it is not certain that a key will be used and therefore there is a desire to define operating conditions based on other things, such as at a certain keystroke or if a driver has been detected.
    Through the infrastructure system according to the invention, the key unit will not remain, which means that ECUs on the network, e.g. The CAN bus will be woken up and kept awake in another way.
    The object of the invention is to provide an improved infrastructure system for a vehicle which is safer and more general than the current system.
    More specifically, the purpose is to provide an infrastructure system, and a method for the system, which is not dependent on activation via a key and the positions of the key.
    SUMMARY OF THE INVENTION The above objects are achieved by the invention defined by the independent claims.
    Preferred embodiments are defined by the dependent claims. The infrastructure system is configured to receive one or more insignia to at least one ECU, including parameter values representing events.
    Events mean, for example, that a person is detected, that a control is affected, that a temperature is exceeded / undershot, etc. The parameter values can refer to output signals from various sensors that are connected to ECUs or in another way to the network. The at least one ECU is configured to analyze said insignia by means of transition conditions and to determine an operating condition of the vehicle based on the result of the analysis and to make a certain operating condition available on the network.
    According to the infrastructure system, each ECU comprises a permit module comprising a unique set of permit rules for each of the operating permits, and the permit module is configured to identify the current operating permit for the vehicle based solely on said permit rules and to apply the permit rules associated with the identified operating permit. authorization rules include control parameters for the ECU.
    Information on the current operating condition of the vehicle is sent out on the CAN bus or CAN buses and the ECUs can decide for themselves whether to switch them off.
    When changing operating conditions, depending on which wake-up procedure is used, relevant units, irrelevant units, or alternatively all units are awakened, and then some shut down when they find out which condition it is.
    Several new operating permits have been introduced in the permit map because there is, or will be, a need for these permits. Such a condition is defined for the situation when the vehicle is driven autonomously.
    In order for the system to be able to change state, it must know which state currently exists and the necessary conditions for transfer to another state must be met.
    More specifically, the change of permit takes place by: o An ECU sends out the permit at CAN and is responsible for changing the permit at CAN. All ECUs will thus be aware of the current situation. o All awake units can change states.
    The solution according to the present invention is general and adapted to handle and insert new operating conditions, for example autonomous driving. The solution also means that the key dependence disappears.
    The ECUs connected to the CAN buses thus know the state of the network. This provides better opportunities than in the current system for the devices to act smarter depending on the condition of the CAN bus. For example. For example, the instrument panel can be set to dim to save power when the network is not in “run” mode and a driver is in the cab and wants to see what is on the panel.
    Other reasons for defining new states are to make the units more intelligent, ie. be able to act differently depending on the condition, and it is an easy way to handle waking up and shutting down.
    It also becomes easier to prevent various events; for example, the parking brake cannot be deactivated because it is not in an "active" state (provided that the brake is automatically activated in the other states).
    In addition, it is advantageous to have a permit for the entire vehicle in order to connect different operating conditions for the vehicle in order to get a quick overview of how the vehicle can be put into operation.
    The only thing that is affected by the current situation is thus which units should be awake. For example, an operating condition can be defined by the following factors: - If a driver or a passenger has been detected.
    - Manual activation or deactivation, e.g. via buttons or sliders.
    - Remote control.
    - If a diagnostic tool has been switched on / off.
    - Battery status and position of a battery switch.
    - Permit priorities.
    Brief Description of the Drawings Figure 1 shows an example of a state map applicable to the implementation of the present invention.
    Figure 2 is a block diagram schematically illustrating an infrastructure system according to the present invention.
    Figure 3 shows a block diagram of a state module according to an embodiment of the invention.
    Figure 4 is a flow chart illustrating the method of the invention.
    Detailed Description of Preferred Embodiments of the Invention The infrastructure system and method will now be described in detail with reference to the accompanying figures.
    In the figures, the same or similar parts have consistently received the same reference numerals.
    In the following, a number of operating states S1-S8 and their transitions 1-20 will be described with reference to the state map shown in Figure 1. The described states are to be considered as examples, there may be both other states and one or more of the states described need not be included in a condition map applied by the infrastructure system according to the invention. Every 6 states have units that are awake, asleep and some units can wake up and shut down within the same state.
    S1 - Active This condition is intended for when the vehicle is used for manual driving or when working with something else.
    The vehicle is in the "Active" state if the systems that support driving are active, and the "Diagnostic" and "Autonomous" states are not active.
    This state in turn includes a number of sub-states. Transitions to the "Active" state can take place from the "Wake" and "Autonomous" states - see figure 1. 7 Transition from "Wake" is activated manually, e.g. via a switch, button or that the accelerator pedal is depressed. Transition from "Autonomous" takes place when the condition "Autonomous" is left manually, by the driver manually deactivating the condition, e.g. via a switch.
    S2 - Autonomous This condition is intended to be used in the future when the vehicle is driven automatically or remotely, for example during traffic jams or for vehicle trains in order to allow the driver to do other things at the same time. Later on, this permit can be implemented for more situations.
    This mode is activated manually or via remote control. It is important to understand that this condition in itself includes several conditions, e.g. when a passenger has been detected (the comfort units will then be activated) or an active state if the vehicle is driven. Therefore, the devices active during this state change. Due to this, the energy consumption varies but is always relatively high because the units required to drive the vehicle are always active. 7 This condition can be accessed from the "Off", "Wake", "Active" and "Comfort" states, which will be described below. 12 Transition from "Off" takes place when autonomous driving is activated in some way. 6 Transition from "Wake" takes place when autonomous driving is activated in some way. 11 Transition from "Active" takes place when the driver manually activates the autonomous operating mode. 9 Transition from "Comfort" takes place when autonomous driving is activated in some way.
    S3 - Wake This condition is used when the driver is near or in the cab and components required to start the engine have not yet been activated. In this state, most things that help to give the driver comfort are active, e.g. the radio, lighting and air conditioning - this is also a permit for the vehicle to prepare for the permit "Active", e.g. by warming up the engine or defrosting mirrors and windscreens. Most of the user functions are available, in addition to the driving functions.
    Generally, this permit is transferred when the driver is close to the vehicle and no other permit is applicable.
    With reference to Figure 1, the Transitions to the "Wake" state will now be described. This condition can be accessed from the "Off", "Comfort", "Autonomous" and "Active" states. 4 Transition from "Off". This transition occurs when the driver is detected and the "Shutdown" switch is off. 2 Transition from "Comfort" This transition occurs when the "Comfort" switch is switched off. Transition from "Autonomous". This transition is due to internal states in the state "Autonomous", so-called sub-states. The transition occurs when a driver has been detected, and when the "Autonomous" state is not "Active" and the "Autonomous" state has been deactivated. 8 Transition from "Active". The transition takes place when the engine and the systems used for driving have been switched off correctly.
    S4 - Comfort This condition is primarily intended for the situation where the driver / passenger needs to rest or sleep. It is switched on manually by the driver (transition 1) and can only be activated from the "Wake" mode (S3).
    S5 - Diagnostics The purpose of the "Diagnostics" condition is to provide a diagnostic service in a simple way. This condition is normally used by mechanics and operating personnel. This condition is activated from any other condition when a diagnostic tool is engaged and the wheels do not roll (transition 19). The only exceptions are from the "Battery disconnected" and "No battery" modes.
    S6 - Off This condition is the usual condition when the vehicle is parked. It is used to minimize energy consumption in order to be in operation for as long as possible. Below are some examples of devices that need to be awake or be periodically awake: Alarm and lock functions (ALM) are always awake.
    If the vehicle uses the system to detect drivers, e.g. when the key is close, this system must be active.
    Parking lights, if switched on before "Off" condition.
    The tachograph must always be active.
    With reference to Figure 1, the transitions to the "Off" state will now be described. This condition can be accessed from the "Battery disconnected", "Wake", "Autonomous" and "Diagnostic" modes. Transition from "Battery disconnected" occurs when a battery is connected and the battery switch closes. 3 Transition from "Awake". occurs when no driver has been detected and no activity has occurred for a predetermined time. The driver can also manually switch off the wake mode and the vehicle then enters the "Off" mode 13 Transition from "Autonomous". This transition occurs when no passenger / driver has been detected and either when it is switched off via a remote control or when the vehicle has completed its task. 14 Transition from "Diagnostics". As soon as someone has made a diagnosis of the system, the vehicle will always first switch to the "Off" state. This is done for safety reasons. lO S7 - Battery disconnected For some vehicles it may be possible to disconnect the battery that supplies the devices. In this state, only those devices that are directly connected to the battery have power supply. The network enters this state when the battery is disconnected and can be accessed from any other state (Transitions 16 and 18). Either the state is reached when the battery is put in place (transition 18) or when the battery is connected and then disconnected (transition 16). If the vehicle does not have a battery switch, this condition can be replaced with the "No battery" condition. The "Battery disconnected" operating mode can be practical when the vehicle will be parked for a long time.
    S8 - No battery The network enters this state when the battery supplying the devices is disconnected and there is therefore no power consumption. This state can be accessed from any other state (Transitions 17 and 20) and no devices are active in the state. Technically, the devices will not know that they are in this state because they are not powered.
    In Figure 1, there is also a state Sn which generally denotes transitions from all states.
    Referring to Figure 2, the infrastructure system of the present invention will now be described in detail.
    Thus, it refers to an electrical infrastructure system for a vehicle, comprising a plurality of electronic control units ECU1-ECUN for one or more functional units 30n for the vehicle, said ECUs being interconnected via a network 32.
    The functional units refer to units that handle functions for the vehicle, for example functions related to shifting, steering, engine control, braking, climate systems, lighting, driver comfort, alarms and safety. According to one embodiment, the network 32 is a CAN network, but can also be realized as an Ethernet network. The system shown in Figure 2 is to be considered as an example only. In common applications, the network is often divided into a number of sub-networks with an ECU that connects the various sub-networks. Such an interconnecting ECU is often referred to as a coordination unit. The infrastructure system is configured to implement a state map, e.g. of the kind shown in Figure 1, comprising a plurality of logic components in the form of different operating states Sn that the vehicle can assume. These operating states are connected by one or more transitions Tn - as in Figure 1, denoted by the numbers 1-20, where the transition from one operating state to another is controlled depending on whether predetermined transition conditions are met.
    Furthermore, the infrastructure system is configured to receive one or more inputs 34 to at least one ECU, including parameter values representing events. By events is meant, for example, that a person is detected, that a control is affected, that a temperature is exceeded / undershot, etc.
    The parameter values can refer to output signals from various sensors that are connected to ECUs or otherwise to the network.
    The at least one ECU is configured to analyze said input signals by means of the transition conditions and to determine an operating state Sn for the vehicle based on the result of the analysis and to make a certain operating state available on the network 32. The transition conditions are designed so that the transitions between the different operating states in the state map - for example according to the transitions described above with reference to Figure 1.
    Each ECU includes a state module 36 which includes a unique set of state rules SnRm for each of the operating states Sn. The condition module 36 of the ECU is configured to identify the current operating condition Sn of the vehicle solely based on said permit rules and to apply the permit rules SnRm associated with the identified operating permit to the ECU, said permit rules including control parameters for the ECU. The state rules SnRm in each ECU are 12 adapted to determine whether the ECU should be activated depending on the identified operating state.
    Figure 3 shows a schematic block diagram of a state module 36 that includes a controller 38 and a memory unit 40. The memory unit 40 is configured to store the state rules and control parameters. The permit rules can, for example, be structured as a table where the associated permit rules are stored for each operating permit Sn.
    According to one embodiment, one of the ECUs is structured to function as a superior control unit for the network 32 and configured to receive the one or more input signals 34 and to determine the operating state of the vehicle.
    In order to handle situations where conflicts occur regarding which operating license is to apply, the operating licenses have preferably been assigned different priority, from lowest priority to highest priority, and that an operating license with a higher priority has priority over one with a lower priority. The highest priority operating conditions are e.g. those who are most critical from a security perspective. In more detail, this is accomplished by allowing all states that can be accessed from a state to be given different priorities.
    The present invention also includes a method in an electrical infrastructure system for a vehicle. the infrastructure system is of the type described above and thus comprises a plurality of electronic control units (ECU) for one or more functional units for the vehicle, and wherein said ECUs are interconnected via a network.
    The method will now be described with reference to the flow chart in Figure 4. The method comprises implementing a state map comprising a plurality of logical components in the form of different operating states Sn that the vehicle can assume, these operating states are connected to one or more transitions Tn as indicated in Fig. 1. 1-20. Examples of operating conditions and various transitions have been described above. The transition from one operating state to another is controlled depending on whether predetermined transition conditions are met. The method comprises the steps of: - Receiving, in at least one ECU, one or more input signals including parameter values representing events. By events is meant, for example, that a person is detected, that a control is affected, that a temperature is exceeded / undershot, etc.
    - Analyze said input signals with the aid of said transition conditions.
    - Determine an operating condition Sn for the vehicle based on the result of the analysis.
    - Make the specific operating condition available on the network.
    The method further comprises, in a state module for each of said ECUs and which includes a unique set of state rules SnRm for each of the operating states Sn, the steps of: - Identifying the current operating state Sn for the vehicle based solely on said state rules.
    - Apply the SnRm permit rules associated with the identified operating permit to the ECU, where the said permit rules include control parameters for the ECU.
    The permit rules SnRm in each ECU are adapted to determine whether the ECU is to be activated depending on the identified operating permit.
    According to one embodiment, one of said ECUs is structured to function as a superior control unit for the network and configured to receive said one or more input signals and to determine the operating state of the vehicle.
    The state module comprises a control unit and a memory unit, and that the memory unit is configured to store said state rules and control parameters.
    In order to handle situations where conflicts occur regarding which operating license is to apply, the operating licenses have preferably been assigned different priorities, from a minimum of 14 priority to the highest priority, and that an operating license with a higher priority has priority over one with a lower priority.
    The invention also comprises a computer program comprising a program code P (see Figure 2) for causing an infrastructure system 2, or a computer connected to the infrastructure system 2, to perform the steps of the method described above.
    The program code P is preferably distributed on one or more state modules 36.
    The invention also comprises a computer program product comprising the program code P stored on a computer readable medium for performing the method steps described herein. The computer program product may be, for example, a CD or according to one embodiment comprise a non-volatile memory (NVM), for example a flash memory.
    The present invention is not limited to the above-described preferred embodiments. Various alternatives, modifications and equivalents can be used.
    The above embodiments are therefore not to be construed as limiting the scope of the invention as defined by the appended claims.
    权利要求:
    Claims (18)
    [1]
    An electrical infrastructure system for a vehicle, comprising a plurality of electronic control units (ECU) for one or more functional units (30n) of the vehicle, said ECUs being interconnected via a network (32), the infrastructure system being configured to implement a state map comprising a plurality of logic components in the form of different operating states Sn that the vehicle can assume, these operating states are connected to one or more transitions Tn, where the transition from one operating state to another is controlled depending on whether predetermined transition conditions are met, characterized in that the infrastructure system is configured to receive one or more inputs (34) to at least one ECU, including parameter values representing events, and that said at least one ECU is configured to analyze said inputs using said transition conditions and to determine an operating state Sn of the vehicle based on the result of the analysis and to make determined operating state available on the network (32), each ECU comprising a state module (36) comprising a unique set of state rules SnRm for each of the operating states Sn, and wherein the state module (36) is configured to identify the current operating state Sn of the vehicle based solely on said state rules. and applying the status rules SnRm associated with the identified operating license to the ECU, said license rules including control parameters for the ECU.
    [2]
    The infrastructure system of claim 1, wherein one of said ECUs is structured to function as a superior control unit for the network (32) and configured to receive said one or more input signals (34) and to determine the operating state of the vehicle.
    [3]
    The infrastructure system according to claim 1 or 2, wherein said state module comprises a control unit (38) and a memory unit (40), and wherein the memory unit is configured to store said state rules and control parameters. 10 15 20 25 30 16
    [4]
    The infrastructure system according to any one of claims 1-3, wherein said network is a CAN network.
    [5]
    The infrastructure system according to any one of claims 1-3, wherein said network is an Ethernet network.
    [6]
    The infrastructure system according to any one of claims 1-5, wherein said events comprise, for example, that a person is detected, that a control is affected, that a temperature is exceeded / undershot, etc.
    [7]
    The infrastructure system according to any one of claims 1-6, wherein said permit rules SnRm in the respective ECU are adapted to determine whether the ECU is to be activated depending on the identified operating condition.
    [8]
    The infrastructure system according to any one of claims 1-7, wherein said operating condition of the vehicle has different priority, from lowest priority to highest priority, and that an operating condition with higher priority has priority over one with lower priority.
    [9]
    A method in an electrical infrastructure system for a vehicle, wherein the infrastructure system comprises a plurality of electronic control units (ECU) for one or more functional units for the vehicle, and wherein said ECUs are connected via a network, the method comprises implementing a state map comprising a plurality of logic components in the form of different operating states Sn that the vehicle can assume, these operating states are connected to one or more transitions Tn, where the transition from one operating state to another is controlled depending on whether predetermined transition conditions are met, characterized in that the method comprises the steps of: - receiving, in at least one ECU, one or more input signals comprising parameter values representing events, - analyzing said input signals by means of said transition conditions, - determining an operating state Sn of the vehicle based on the result of the analysis, 25 30 17 - make the specific operating condition available on the network, and the method further comprises performing, in a state module for each of said ECUs and comprising a unique set of state rules SnRm for each of the operating states Sn, the steps of: - identifying the current operating state Sn for the vehicle based solely on said state rules, - applying the with identified operating condition associated with the permit rules SnRm on the ECU, said permit rules include control parameters for the ECU.
    [10]
    The method of claim 9, wherein one of said ECUs is structured to function as a superior control unit for the network and configured to receive said one or more input signals and to determine the operating state of the vehicle.
    [11]
    The method of claim 9 or 10, wherein said state module comprises a controller and a memory unit, the memory unit being configured to store said state rules and control parameters.
    [12]
    The method of any of claims 9-11, wherein said network is a CAN network.
    [13]
    The method of any of claims 9-11, wherein said network is an Ethernet network.
    [14]
    The method according to any one of claims 9-13, wherein said events comprise, for example, that a person is detected, that a control is affected, that a temperature is exceeded / undershot, etc.
    [15]
    The method according to any one of claims 9-14, wherein said state rules SnRm in the respective ECU are adapted to determine whether the ECU is to be activated depending on the identified operating state. 10 18
    [16]
    The method according to any of claims 9-15, wherein said operating condition of the vehicle has different priority, from lowest priority to highest priority, and that an operating condition with higher priority takes precedence over one with lower priority.
    [17]
    A computer program comprising a program code P for causing an infrastructure system, or a computer connected to the infrastructure system, to perform the steps of the method according to any one of claims 9-16.
    [18]
    A computer program product comprising a program code P stored on a computer readable medium for performing the method steps according to any one of claims 9-16.
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1450179A|SE538314C2|2014-02-17|2014-02-17|Infrastructure system for a vehicle|SE1450179A| SE538314C2|2014-02-17|2014-02-17|Infrastructure system for a vehicle|
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    US15/107,378| US9827997B2|2014-02-17|2015-02-05|Infrastructure system for a vehicle|
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    KR1020167024790A| KR101890379B1|2014-02-17|2015-02-05|Infrastructure system for a vehicle|
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