• 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:
    BACKGROUND OF THE INVENTION The invention relates to medium-heavy and heavy-duty trucks and hybrid-electric-medium-duty and heavy-duty trucks, and particularly to hybrid-electric-truck launch assist solutions. The arrangement according to the invention for assisting the start-up of a hybrid electric truck (1), wherein the hybrid electric truck (1) comprises an internal combustion engine (2), a clutch (3), a gearbox (4) and a coupling between said clutch (3) and said gearbox (4). electric motor / generator (5), characterized in that said hybrid electric motor truck (1) comprises an internal combustion engine control unit (6), an electric motor / generator control unit (7), an energy storage (8) electrically connected to said electric motor / generator (5), a programmable logic unit (9) and a hybrid drive control unit (10), the programmable logic unit (9) and a hybrid drive control unit (10) adapted to turn on the start assist, and by means of said hybrid electric motor (1) to start said electric motor (5); .
    公开号:FI20175450A1
    申请号:FI20175450
    申请日:2017-05-18
    公开日:2018-11-19
    发明作者:Juha Markkanen；Eero Laine；Robert Sandström
    申请人:Oy Sisu Auto Ab；
    IPC主号:
    专利说明:

    Method and arrangement for assisting the start of a hybrid electric truck
    Field of the Invention
    The invention relates to medium-heavy and heavy-duty trucks and hybrid-electric-medium-duty and heavy-duty trucks, and in particular to solutions for assisting the start-up of a hybrid electric-powered truck.
    Background of the Invention
    For medium-duty trucks and heavy-duty trucks, the use of hybrid electric trucks has increased in recent years. Hybrid electric trucks are usually powered by an internal combustion engine as the primary engine. Hybrid electric trucks usually also include an energy storage or energy source. The energy storage can be a chemical energy storage such as a battery or an electrical energy storage such as a capacitor battery. Similarly, an external power grid can sometimes also serve as an energy source.
    The Hybrid Electric Truck can recharge its energy storage while the truck is braking. This utilizes kinetic energy, which is converted into electrical energy. The energy stored in the energy storage can later be utilized for use in a hybrid electric truck.
    For medium and heavy trucks, as well as hybrid trucks, it has become a problem to get started. Typically, when moving off, the clutch, throttle and brake must be operated using the feet. Starting situations include crawling and hill climbing. Often such starting situations also involve sliding the coupling, resulting in strong coupling wear and overheating of the coupling.
    Today, there is a clear need and demand for new types of solutions for hybrid electric-powered medium-duty and heavy-duty trucks that can solve the problem of starting a hybrid electric truck more cheaply and effectively, or minimize the disadvantages.
    BRIEF DESCRIPTION OF THE INVENTION It is an object of the present invention to provide a novel type of solution for assisting the launch of a hybrid electric truck that minimizes the problems and disadvantages of starting a hybrid electric truck.
    The arrangement according to the invention for assisting in the propulsion of a hybrid electric truck, wherein the hybrid electric truck comprises an internal combustion engine, a clutch, a gearbox and an electric motor / generator fitted between said clutch and said gearbox, characterized in that said hybrid electric motor a control unit, an energy storage device electrically coupled to said electric motor / generator, and a programmable logic unit and hybrid drive control units adapted to:
    Preferably, said internal combustion engine is a diesel-powered internal combustion engine, or a bio-diesel-powered internal combustion engine. Preferably, said switch is an automatic switch. Preferably, said gearbox is an unsynchronized gearbox. Alternatively, said transmission is a synchronized transmission. Further, alternatively, said gearbox is a robot controlled manual gearbox.
    Preferably, said energy storage is electrically coupled to said electric motor / generator via said electric motor / generator control unit. Further preferably, said energy storage and / or said electric motor / generator control unit are / are located on the body of a hybrid electric vehicle.
    Preferably, said hybrid drive controls comprise a hybrid drive display device, a switch (s), and / or a hybrid drive joystick.
    Further preferably, said hybrid drive display device comprises a touch screen and display switches and / or touch switches selectable from the touch screen.
    Preferably, said hybrid drive joystick comprises a rocker switch mounted on the end of the joystick and / or buttons mounted on the end of the joystick.
    Advantageously, said hybrid electric truck comprises an emergency stop switch unit comprising separate safety switches located in the truck cab and / or outside the truck, said safety switches being adapted to control the emergency stop functions.
    The hybrid electric electric truck according to the invention comprising a combustion engine, a clutch, a gearbox and an electric motor / generator fitted between said clutch and said gearbox, characterized in that said hybrid electric electric truck comprises an electric motor / generator generator control unit, an electric motor / generator-connected energy storage, as well as a programmable logic unit and a hybrid drive control unit adapted for:
    The method of assisting the launch of a hybrid electric truck according to the invention, wherein the hybrid electric truck comprises an internal combustion engine, a clutch, a gearbox and an electric motor / generator fitted between said clutch and said gearbox, is characterized in that said method comprises: said coupling, - actuating a start assist by means of hybrid drive controls, - assisting said hybrid electric truck with said electric motor / generator, and - engaging said internal combustion engine by releasing said coupling.
    Preferably, said hybrid electric-powered truck is driven by an electric motor / generator in slow / accurate drive or creep mode prior to engaging said internal combustion engine with said gearbox.
    Preferably, said method further comprises the step of: - activating a hill departure assistance by means of a hybrid drive control device, and that said step of assisting a hybrid electric truck to drive comprises automatically controlling an electric motor / generator drive by an electric motor / generator control unit, hybrid electric truck in place.
    Preferably, said step of propelling the hybrid electric truck comprises the steps of: - projecting said hybrid electric truck forward by said electric motor / generator, - projecting said hybrid electric truck backward by said electric motor / generator, forward driving said electric motor / generator, with said electric motor / generator.
    Preferably, said forward and backward reflection steps are repeated one or more times without shifting.
    An improved solution has now been developed for the launch of a Hybrid Electric Truck that can be deployed in a wide variety of operating conditions.
    The present invention achieves a number of advantages which will be more fully apparent from the detailed description. The solution according to the invention provides a more cost-effective and efficient solution to the problems of starting a Hybrid Electric Truck or minimizing the disadvantages caused by the problems.
    BRIEF DESCRIPTION OF THE DRAWINGS
    Figure 1 is a rough structural view of a hybrid electric truck according to an embodiment of the invention,
    Figure 2 is a block diagram of the structure of a hybrid electric truck according to an embodiment of the invention,
    Fig. 3 is a structural view of a display device adapted for controlling the hybrid drive of a hybrid electric truck according to an embodiment of the invention,
    Fig. 4 is a schematic view of dashboard switches adapted to control the hybrid drive of a hybrid electric truck according to an embodiment of the invention,
    Figure 5 is a structural view of a joystick adapted to control the hybrid drive of a hybrid electric truck according to an embodiment of the invention,
    Fig. 6 is a flowchart illustrating a method for assisting the start-up of a hybrid electric truck according to an embodiment of the invention,
    Fig. 7 is a flowchart illustrating a method for assisting the start-up of a hybrid electric truck in a hill start situation according to an alternative embodiment of the invention; and
    Fig. 8 is a flowchart illustrating a method for assisting the start-up of a hybrid electric truck by reflection in accordance with another alternative embodiment of the invention.
    Some embodiments of the invention will now be described in more detail with reference to some preferred embodiments, with reference to Figures 1-8.
    DETAILED DESCRIPTION OF EMBODIMENT OF THE INVENTION
    Figure 1 is a rough structural view of a hybrid electric truck according to an embodiment of the invention. The hybrid electric truck 1 according to one embodiment of the invention comprises an internal combustion engine 2, a switch 3 and a gearbox 4. The hybrid electric truck 1 according to the invention further comprises an electric motor / generator 5 fitted between the switch 3 and the gearbox 4.
    The internal combustion engine 2 according to the invention may be, for example, a diesel-powered internal combustion engine 2, such as a low-emission diesel engine 2 or a biodiesel-powered internal combustion engine 2. The switch 3 according to the invention may be for example an automatic clutch 3. The gearbox 4 according to the invention
    In the hybrid electric powered truck 1 according to the invention, an electric motor / generator 5 is arranged between the clutch 3 and the transmission 4. Further, the transmission 4 is coupled to the drive wheels of the hybrid electric truck 1 via the PTO shaft. Thus, the hybrid electric electric truck 1 according to the invention is a parallel type hybrid electric powered truck 1. In the parallel type hybrid electric powered truck 1 an electric motor / generator 5 can be used to drive the tires of the truck 1 even without the internal combustion engine 2. gearbox 4 by means of clutch 3.
    Fig. 2 is a block diagram of a structure of a hybrid electric truck according to an embodiment of the invention. The hybrid electric truck 1 according to an embodiment of the invention comprises an internal combustion engine 2, a switch 3 and a gearbox 4. The hybrid electric truck 1 according to the invention further comprises an electric motor / generator 5 fitted between the switch 3 and the gearbox 4. to the drive wheels via the PTO shaft.
    The hybrid electric drive truck 1 according to one embodiment of the invention further comprises an internal combustion engine control unit 6. The internal combustion engine control unit 6 can be used to control the operation of the internal combustion engine 2. The internal combustion engine control unit 6 may also receive from the internal combustion engine 2 information relating to the operation of the internal combustion engine 2, such as engine load information and the position of the accelerator pedal.
    The hybrid electric drive truck 1 according to one embodiment of the invention further comprises an electric motor / generator control unit 7 and an energy storage 8. The electric motor / generator control unit 7 can be used to control the operation of the electric motor / generator 5. The electric motor / generator control unit 7 may also receive from the electric motor / generator 5 information relating to the operation of the electric motor / generator 5 The electric motor / generator control unit 7 may be used to charge and operate the electric motor / generator 5 by means of the energy storage 8. Correspondingly, the electric motor / generator control unit 7 can be used to charge the energy storage 8 by means of the electric motor / generator 5 acting as a generator, for example when braking a hybrid electric vehicle 1. The electric motor / generator control unit 7 may also receive information from the electric motor / generator 5 and / or the energy storage 8 about the power supply and energy charging of the electric motor / generator 5. Similarly, the electric motor / generator control unit 7 may further receive information from the energy storage 8 about the capacity of the energy storage 8. Said energy storage 8 and / or said electric motor / generator control unit 7 may be located on the body of a hybrid electric powered truck 1.
    The hybrid electric powered truck 1 according to one embodiment of the invention further comprises a programmable logic unit 9. The programmable logic unit 9 may comprise user predefined operating settings and user predefined control commands. The programmable logic unit 9 may provide control information and control commands to the combustion engine control unit 6 and / or the electric motor / generator control unit 7. The programmable logic unit 9 may also receive and forward information between the combustion engine control unit 6 and the electric motor / generator control unit 7. The programmable logic unit 9 can thus act as a kind of upper level control system between the combustion engine control unit 6 and the electric motor / generator control unit 7.
    The hybrid electric drive truck 1 according to an embodiment of the invention further comprises hybrid drive control devices 10. Said hybrid drive control devices 10 may comprise a display device 11, a switch (s) 12 and a joystick 13. Hybrid drive control devices 10, 11-13 may be used driving by means of an internal combustion engine 2 and / or an electric motor / generator 5.
    For example, the display device 11 according to the invention may comprise a conventional liquid crystal display or a touch display. The switch (s) 12 according to the invention may be, for example, switches 12, such as electric switches 12, on the dashboard of the hybrid electric truck 1, for example the joystick 13 of the invention.
    The hybrid electric electric truck 1 according to one embodiment of the invention further comprises a separate emergency stop safety switch unit 14. Said separate emergency electric emergency switch unit 14 comprises separate electric safety switches located in the cab and / or outside of the truck 1, by means of which safety switches can be operated. functions.
    Figure 3 is a structural view of a display device adapted for controlling the hybrid drive of a hybrid electric truck according to an embodiment of the invention. A hybrid drive display device 11 according to one embodiment of the invention may comprise a touch screen 15 and display device switches 16-21. Additionally, touch screen 15 may comprise touch switches 22-24 selectable from touch screen 15. The touch screen 15, the switches 16-21 of the display device 11 and the touch switches 22-24 of the touch screen 15 can be used to drive the hybrid electric powered truck 1 according to the invention by means of an internal combustion engine 2 and / or an electric motor / generator 5.
    Fig. 4 is a structural view of dashboard switches adapted to control the hybrid drive of a hybrid electric truck according to an embodiment of the invention. The hybrid drive instrument panel switches 12 according to one embodiment of the invention may comprise switches 25-27. The dashboard switches 12, 25-27 may be used to drive a hybrid electric powered truck 1 according to the invention by means of an internal combustion engine 2 and / or an electric motor / generator 5.
    Fig. 5 is a structural view of a joystick adapted to control the hybrid drive of a hybrid electric truck according to an embodiment of the invention. A hybrid drive joystick 13 according to an embodiment of the invention may comprise a rocker switch 28 mounted on the end of the joystick 13 and / or buttons 29-31 fitted on the end of a joystick 13. The joystick 13 according to the invention may be, for example, a joystick 13. The joystick 13, the rocker switch 28 of the joystick 13 and the buttons 29-31 of the joystick 13 can be used to drive a hybrid electric electric truck 1 according to the invention using an internal combustion engine 2 and
    Fig. 6 is a flowchart illustrating a method of assisting the start of a hybrid electric truck in accordance with an embodiment of the invention. In a method according to an embodiment of the invention, to aid in the start-up of the hybrid electric truck 1, the combustion engine 2 is first disconnected from the transmission 4 by means of a clutch 3. Next, the drive assist is switched on 33. Once the drive assist 33 is turned on, the next hybrid electric drive truck 1 is conveniently assisted 34 by the electric motor / generator 5. In a method according to an embodiment of the invention, the drive of the electric motor / generator 5 is controlled by means of a control stick 13. Once the Hybrid Electric Truck 1 has started moving, the internal combustion engine 2 is next coupled 35 to the gearbox 4 by releasing the clutch 3.
    In the method of the invention, the start assist can be turned on 33 by means of switches 16-21 of the display device, touch switches 22-24 of the touch screen 15, switches 12, 25-27 of the dashboard or buttons 29-31 of the joystick 13. In the method of the invention, the hybrid electric truck 1 can be controlled by manual control. In the method according to the invention, the drive of the electric motor / generator 5 can be controlled, for example, by turning the control stick 13 forward. Further, by the method, the hybrid electric powered truck 1 can be driven by an electric motor / generator 5 in slow / precise driving or in creep driving before the combustion engine 2 is connected to the gearbox 4.
    Fig. 7 is a flowchart illustrating a method for assisting the start-up of a hybrid electric powered lorry according to an alternative embodiment of the invention in a hill start situation. In a method according to an alternative embodiment of the invention, to aid in the start-up of the hybrid electric truck 1, the combustion engine 2 is first disconnected from the gearbox 4 by means of a clutch 3. Next, the drive assist is switched on 33. Next, the hill start assist 36 is turned on. In an alternative embodiment, the start assist and hill start assist may be switched on 33, 36 simultaneously.
    When the start assist and hill start assist 33, 36 are engaged, the next step is to assist 37 with the electric electric truck / generator 5 conveniently assisting the start of the hybrid electric truck 1. In an alternative embodiment of the invention, the drive of the electric motor / generator 5 is automatically controlled by the electric motor / generator control unit 7 at the start assist 37 at the start of the hill, such that the electric motor / generator 5 stops the
    In a method according to an alternative embodiment of the invention, after assisting the start 37 of the hybrid electric vehicle 1, the combustion engine 2 can be coupled 35 to the gearbox 4 by releasing clutch 3. The hybrid electric vehicle 1 using.
    In the method according to the invention, the start assist and hill start assist can be turned on 33, 36 by means of display device switches 16-21, touch screen 15 touch switches 22-24, dashboard switches 12, 25-27 or joystick 13 buttons 29-31. In the method of the invention, the hybrid electric powered truck 1 can be controlled by manual control.
    Fig. 8 is a flowchart illustrating a method of assisting the start of a hybrid electric truck by reflection in accordance with another alternative embodiment of the invention. In a method according to another alternative embodiment of the invention, to aid in the start-up of the hybrid electric truck 1, the combustion engine 2 is first disconnected from the gearbox 4 by means of a clutch 3. Next, the drive assist is switched on 33. When the drive assist is switched on 33, the hybrid electric truck 1 is next projected 38 by means of an electric motor / generator 5. After the forward projection 38, the hybrid electric powered truck 1 is projected rearward 39 by an electric motor / generator 5. Next, forward projection 38 and backward projection 39 are repeated one or more times without shifting, if necessary. After the projection 38, 39, the hybrid electric truck 1 is assisted 40 in a convenient forward motion by an electric motor / generator 5. In a method according to an embodiment of the invention, the drive of the electric motor / generator 5 is controlled by means of 38-40 control rods 13. Once the Hybrid Electric Truck 1 has started moving, the internal combustion engine 2 is next coupled 35 to the gearbox 4 by releasing the clutch 3.
    In the method of the invention, the start assist can be turned on 33 by means of switches 16-21 of the display device, touch switches 22-24 of the touch screen 15, switches 12, 25-27 of the dashboard or buttons 29-31 of the joystick 13. In the method of the invention, the hybrid electric powered truck 1 can be controlled by manual control. In the method according to the invention, the drive of the electric motor / generator 5 can be controlled 38-40, for example, by turning the joystick 13 forward or backward, respectively.
    The solution of the invention makes it easier to control the Hybrid Electric Truck 1 on both flat and uphill slopes, since the Truck 1 does not stop so easily when it is set off. With the solution of the invention, the hybrid electric powered truck 1 can be driven more accurately and easily by the electric motor / generator 5 in slow / precise driving or crawling.
    By means of the easy-to-use solution according to the invention, the hybrid electric powered truck 1 can be conveniently moved forward and backward without changing gear.
    With the easy-to-use solution of the invention, the hybrid electric-powered truck 1 is made to operate more optimally than previous solutions under different operating conditions. The wear of the coupling 3 of the hybrid electric truck 1 according to the invention can also be prevented. By means of the solution according to the invention, the emissions of the hybrid electric truck 1 can be reduced by the use of an easy-to-use electric motor / generator 5.
    The solution according to the invention provides a more cost-effective and efficient solution to the problems of starting a Hybrid Electric Truck or minimizing the disadvantages caused by the problems.
    It will be obvious to a person skilled in the art that as technology advances, the basic idea of the invention can be implemented in many different ways. The invention and its embodiments are thus not limited to the examples described above, but may vary within the scope of the claims. Thus, various features may be omitted, modified, or replaced by equivalents, and the features disclosed in this application may be combined to form various combinations.
    权利要求:
    Claims (18)
    [1]
    An arrangement for assisting in the start-up of a hybrid electric truck (1), wherein the hybrid electric truck (1) comprises an internal combustion engine (2), a clutch (3), a gearbox (4) and a coupling between said clutch (3) and said gearbox (4). electric motor / generator (5), characterized in that said hybrid electric motor truck (1) comprises an internal combustion engine control unit (6), an electric motor / generator control unit (7), an energy storage (8) electrically connected to said electric motor / generator (5), and a programmable logic unit (9) and a hybrid drive control unit (10), the programmable logic unit (9) and the hybrid drive control unit (10) being adapted to: - turn on the start assist, and - assist the said electric motor (1) in moving said electric motor. / generator (5).
    [2]
    An arrangement according to claim 1, characterized in that said internal combustion engine (2) is a diesel-powered internal combustion engine (2), or a biodiesel-powered internal combustion engine (2).
    [3]
    An arrangement according to claim 1 or 2, characterized in that said switch (3) is an automatic switch (3).
    [4]
    Arrangement according to one of Claims 1 to 3, characterized in that said gearbox (4) is a non-synchronized gearbox (4).
    [5]
    Arrangement according to one of Claims 1 to 3, characterized in that said gearbox (4) is a synchronized gearbox (4).
    [6]
    Arrangement according to one of Claims 1 to 3, characterized in that said gearbox (4) is a robot-controlled manual gearbox (4).
    [7]
    Arrangement according to one of the preceding claims 1 to 6, characterized in that said energy storage (8) is electrically connected to said electric motor / generator (5) via said electric motor / generator control unit (7).
    [8]
    Arrangement according to claim 7, characterized in that said energy storage (8) and / or said electric motor / generator control unit (7) are / are located on the body of a hybrid electric powered truck (1).
    [9]
    An arrangement according to any one of claims 1 to 8, characterized in that said hybrid drive control devices (10) comprise a hybrid drive display device (11), a switch (s) (12) and / or a hybrid drive control stick (13).
    [10]
    An arrangement according to claim 9, characterized in that said hybrid drive display device (11) comprises a touch screen (15) and display switches (16-21) and / or touch switches (22-24) selectable from the touch screen (15).
    [11]
    Arrangement according to claim 9 or 10, characterized in that said hybrid drive joystick (13) comprises a rocker switch (28) fitted on the end of the joystick (13) and / or buttons (29-31) fitted on the end of the joystick (13).
    [12]
    An arrangement according to any one of claims 1 to 11, characterized in that said hybrid electric truck (1) comprises an emergency stop switch unit (14) comprising separate safety switches located in the cab and / or outside the truck (1). ), which said safety switches are adapted to control emergency stop functions.
    [13]
    A Hybrid Electric Truck (1), wherein the Hybrid Electric Truck (1) comprises an arrangement according to any one of claims 1-12.
    [14]
    A method of assisting the start of a hybrid electric truck (1), wherein the hybrid electric truck (1) comprises an internal combustion engine (2), a clutch (3), a transmission (4), and a coupling between said clutch (3) and said transmission (4). electric motor / generator (5), characterized in that said method comprises the steps of: - disconnecting (32) said internal combustion engine (2) from said gearbox (4) by means of said clutch (3), - activating (33) a start assist; 10-13), - for assisting (34), (37), (38-40) driving said hybrid electric truck (1) with said electric motor / generator (5), and - for connecting (35) said internal combustion engine (2). engaging said gearbox (4) by releasing said clutch (3).
    [15]
    A method according to claim 15, characterized in that said hybrid electric-powered truck (1) is driven by an electric motor / generator (5) in slow / accurate driving or creeping before engaging (35) said combustion engine (2) in said gearbox (4).
    [16]
    A method according to claim 14, characterized in that said method further comprises the step of: - activating (36) a hill departure assistance by means of hybrid drive controls (10-13), and wherein said step (37) of assisting the hybrid electric truck (1) comprises: automatic control of the operation of the electric motor / generator (5) by means of the electric motor / generator control unit (7) at the start of the hill, so that the electric motor / generator (5) stops the hybrid electric vehicle (1).
    [17]
    A method according to claim 14, characterized in that said step (38-40) of starting the hybrid electric powered truck (1) comprises the steps of: - projecting said hybrid electric powered truck (1) forward to said electric motor / generator (5). ), - to project backward (39) of said hybrid electric truck (1) by said electric motor / generator (5), - to assist (40) in moving said hybrid electric truck (1) forward by said electric motor / generator (5).
    [18]
    A method according to claim 17, characterized in that said forward and backward reflection steps (38), (39) are repeated one or more times without a gear change.
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    FI127696B|2018-12-14|
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    FI20175450A|FI127696B|2017-05-18|2017-05-18|Start assistance method and arrangement for a hybrid electric truck|FI20175450A| FI127696B|2017-05-18|2017-05-18|Start assistance method and arrangement for a hybrid electric truck|
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