• 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:
    A method for managing an automobile internal combustion engine (1), the vehicle (1) comprising: - a brake pedal (5), and - an automatic gearbox (6) capable of adopting a parking position for locking the driving wheels of the vehicle (1) during parking, this method comprising a step of analyzing the state of the engine (2), the pedal (5) brake and the box (6) speeds so that: - if the engine is off, the gearbox (6) in parking position (P) and the brake pedal (5) depressed, then the engine (2) is restarted, and - if the engine is started, the brake pedal (5) depressed, the gearbox (6) in the parking position and the brake pedal (5) released, then the engine (2) is stopped.
    公开号:FR3032164A1
    申请号:FR1550775
    申请日:2015-02-02
    公开日:2016-08-05
    发明作者:Alex Malot；Fanny Chabardes；Brauer Caroline De
    申请人:Peugeot Citroen Automobiles SA；
    IPC主号:
    专利说明:

    [0001] The invention relates to the field of internal combustion engines of motor vehicles and more particularly to the management of the shutdown and start-up of these engines. BACKGROUND OF THE INVENTION [0001] engines and in particular engines equipped with an automatic stop and restart system, and an automatic or robotic gearbox. To limit fuel consumption and the release of polluting particles into the atmosphere, it is known to stop the engine when the vehicle is stationary. For example, when the stopping time of a vehicle exceeds three seconds, the engine is stopped and restarted when the driver acts on one of the controls of the vehicle. On a vehicle equipped with an automatic gearbox, when the gearbox is in a position corresponding to a reverse gear of the vehicle, the stop and restart system can be disabled since the stops are frequent and of short duration. When the gearbox is in a position corresponding to a neutral or parking position, the automatic stop and restart system may allow and / or maintain the engine stop since the vehicle is immobilized. [0005] Finally, when the gearbox is in a position corresponding to a rolling position, the stop and restart system may allow stopping, maintaining the stopping and / or restarting of the engine. [0006] Document FR 2 995 835 discloses a stop and restart management method for a motor vehicle engine, this method comprising a main step of taking into account the activated or deactivated position of the parking brake and the action of the driver on the brake pedal. In addition, in underlying process steps, the position of the gearbox and the state of depression of the clutch pedal, if any, may be taken into account to stop or restart the engine. [0007] If this method makes it possible to stop and restart the engine, it has certain disadvantages. [0008] Firstly, this method is based on a series of steps taken into account of certain parameters which involves a computer having a large processing capacity. In addition, this method is slow to implement and does not allow a fast response time. Thus, the driver can not enjoy optimal torque as soon as he wants to move the vehicle. Secondly, taking into account the state of the parking brake is an obstacle to the implementation of the method. For a manual parking brake, it is common that the action of the driver is not complete, for example by inattention or manipulation too fast handle, and the parking brake is not fully loosened. This incomplete action does not prevent the movement of the vehicle but generates a signal indicating to the driver that the parking brake is not completely loosened and prematurely wears the parking brake. For an automatic parking brake requiring a torque threshold value to be exceeded in order to deactivate the parking brake, the motor can not be restarted and thus generate the torque necessary to deactivate the parking brake, deactivation of the parking brake automatic operation is necessary for restarting the engine. In the following text, we will use the term automatic gearbox to designate both automatic and robotic gearboxes. A first objective is to provide a method for managing the shutdown and restart of a motor vehicle internal combustion engine, which is fast and does not require large resources for its implementation. [0012] A second objective is to propose a method for managing the stopping and restarting of an internal combustion engine of a motor vehicle, which is simple to design and adapt to different engines. [0013] A third objective is to propose a method for managing the stopping and restarting of an internal combustion engine of a motor vehicle, which anticipates the driver's restarting will to ensure optimal torque as soon as the user wish to move the vehicle. A fourth objective is to propose a motor vehicle comprising an internal combustion engine and a computer for implementing a method for managing the stopping and restarting of an internal combustion engine meeting the above objectives. For this purpose, it is proposed, in the first place, a management method of an internal combustion engine of a motor vehicle, the vehicle comprising: a brake pedal that can adopt a recessed position 10 to brake the vehicle and a relaxed position having no influence on the vehicle, and an automatic gearbox that can adopt a rolling position to allow the vehicle to move forward, a recoil position to allow the vehicle to recoil, 15 a neutral position for separating the motor from a drive circuit of the vehicle, and a parking position for locking the drive wheels of the vehicle during a parking, this method comprising a step of analyzing the state of the engine, the brake pedal and the transmission so that if the engine is turned off, when a driver of the vehicle places the transmission in the parking position and depresses the brake pedal, then the e engine is restarted. [0016] Advantageously, if the engine is started, when the driver depresses the brake pedal, the driver positions the gearbox in the parking position from the driving position, the recoil position or the neutral position and the driver releases the brake pedal, then the engine is stopped. The only taking into account of the state parameters of the engine, the brake and the gearbox makes it possible to increase the reactivity of the computer, to promote a fast extinction or restart of the engine and to anticipate the will. restarting a driver of the vehicle to provide a nominal torque to the driver. It is proposed, secondly, a computer for implementing the method as described above, the computer being coupled to the bodies of a motor vehicle. Advantageously, the computer comprises four inputs and two outputs. It is proposed, third, a motor vehicle comprising an internal combustion engine, a battery, a brake pedal, an automatic gearbox and a computer adapted to implement the previously described method. Other characteristics and advantages of the invention will appear more clearly and concretely on reading the following description of embodiments, which is made with reference to the accompanying drawings, in which: FIG. schematic view showing the connections between a computer and various components of a motor vehicle; Figure 2 is a timing chart showing the state of different members of Figure 1 according to a first use configuration; - Figure 3 is a timing chart showing the state of different members of Figure 1 according to a second use configuration. In Figure 1 is shown, schematically, a vehicle 1 automobile comprising an internal combustion engine 2, a computer 3, a battery 4, a brake pedal 5, a gearbox 6 and a tachometer 7. The gearbox 6 is a 6 automatic gearbox whose different positions will be described below. The vehicle 1 is equipped with an automatic stop and restart system that stops the engine 2 when the vehicle 1 is stopped, in order to reduce fuel consumption and limit the discharge of polluting particles into the atmosphere. The stop and restart system is controlled by the computer 3 and is activated or deactivated according to a threshold speed of the vehicle 1. For example, when the instantaneous speed of the vehicle 1 is greater than the threshold speed, the stopping and restarting system is deactivated, whereas when the instantaneous speed of the vehicle 1 is below the threshold value, the stopping and restarting system is activated. The instantaneous speed of the vehicle 1 is supplied to the computer 3 by the tachometer 7. As seen in FIG. 1, the computer 3 comprises four inputs and two outputs, the four inputs being connected to the tachometer 7, to the pedal 5, the motor 2 and the gearbox 6, the two outputs being connected to the battery 4 and the motor 2. More specifically, the connection between the computer 3 and the brake pedal 5 is via a brake sensor F for providing a binary signal on the depression state of the brake pedal 5, namely a signal 0 if the brake pedal 5 is not depressed, and a signal 1 if the pedal 5 brake is depressed. Similarly, the connection between the gearbox 6 and the computer 3 is via a box P sensor for providing a binary signal on the state of a position of the gearbox 6, namely a signal 0 if the gearbox 6 is in a neutral position N to dissociate the motor 2 of a drive circuit (not shown) of the vehicle 1, in a recoil position R allowing the recoil of the vehicle 1 or a position D driving allowing the vehicle 1 to move forward, and a signal 1 if the gearbox 6 is in a parking position P to block the drive wheels of the vehicle 1 during parking. The word parking is a word of English origin which means that the vehicle 1 is in a condition in which the vehicle 1 does not move. The link between the computer 3 and the battery 4 is a schematic modeling of a starting circuit of the engine 2. In reality, the computer 3 sends a start command to a starter (not shown for simplification purposes) 4. As soon as the start command is received by the starter, the starter draws from the battery 4 the energy necessary to provide a starting torque to the engine 2. [0031] With the help of information from the brake sensor F and the P-box sensor, the computer 3 can execute a step of a management method of stopping and restarting the engine 2, so as to achieve a stop A of the engine 2 or a RD restart of the engine 2 from the analysis of the state of the brake sensor F, the P-box sensor and the state of the engine 2. The timing diagrams of FIGS. 2 and 3 represent the A-stop. and the restart RD of the engine 2 generated by the calculator 3 to party r information from the brake sensor F and the box sensor P. As seen in phase IV of the timing diagram of Figure 2, the engine 2 is restarted if: the engine 2 is stopped (A = 1); the driver presses the brake pedal 5 (F = 1), and the gearbox 6 is in the parking position (P = 1). Thus, if the vehicle 1 is parked, with the engine 2 stopped (A = 1) and the gearbox 6 in the parking position P, the RD restart of the engine 2 is automatically activated if the driver presses on the brake pedal 5. The pressing of the brake pedal 5 is mandatory, for safety reasons, to release the lever from the position P, therefore before the RD restart of the engine 2, in order to avoid putting the vehicle 1 into motion during the RD restart. , which could cause a collision between the vehicle 1 and a wall, for example, or a pedestrian passing close to the vehicle 1. On the other hand, as can be seen in phase II of the timing diagram of FIG. engine 2 is stopped if: - engine 2 is running; the driver releases the brake pedal 5 (F = 0), and the driver positions the gearbox 6 is in the parking position (P = 1). Thus, if the driver immobilizes the vehicle, engine 2 in operation and brake pedal 5 depressed, then positions the gearbox 6 on the parking position P, then the release of the brake pedal 5 causes the stop A motor 2. [0036] As seen in phase I of Figure 2, if the user positions the gearbox 6 in parking position P, and the engine 2 is in operation, it is sufficient for the driver to depress and then release the brake pedal 5, or to release the brake pedal 5 if the brake pedal 5 was already depressed, to allow the engine 2 to stop. [0037] According to these two configurations, in position P parking, the A stop of the engine 2 is effective until the driver engages the brake pedal 5, and A stop of the engine 2 intervenes only if the driver releases the brake pedal 5. The phases of the timing diagram of FIG. 2 are described chronologically. [0039] In phase I, the engine 2 is on, the driver depresses the brake pedal 5, positions the gearbox 6 on the position P parking then release the brake pedal 5. This results in a stop A of the engine 2. The phases II and III respectively represent the reduction of the torque C of the engine 2 and the total absence of torque C. During phases II and III, the gearbox 6 is maintained. in parking position P and the brake pedal 5 is released. Finally, phase IV shows a depression of the brake pedal 5 by the driver, which coincides with a restart RD of the engine 2 until the nominal torque C of the engine 2 is reached. Thus, when the driver positions the gearbox 6 in a position other than the parking position P, the available torque C is the nominal torque C of the motor 2. Thus, as can be seen in the timing diagram. of FIG. 3, and more particularly on phase III, if the driver of the vehicle 1 does not depress the brake pedal 5 (F = 0) and then positions the gearbox 6 in the parking position P (P = 0) and that the engine 2 is stopped, the engine 2 is not restarted (RD = 0). To allow the RD restart of the engine 2, the driver will then have to press the brake pedal 5 (F = 1). The phases of the timing diagram of FIG. 3 are described chronologically. [0045] In phase I, the engine 2 is on, the driver releases the brake pedal 5 and the gearbox 6 is in the neutral position NOT.
    [0002] This results in a stop A of the engine 2. In phase II, there is a decrease in the torque C of the engine 2 until total absence of torque C. [0047] In phase III, the driver positions the box 6 speed in parking position P without acting on the brake pedal 5. The engine 2 then remains stopped until the driver depresses the brake pedal 5 as can be seen in phase IV. This then results in a restart RD of the motor 2 and an increase in the torque C to the nominal torque C. As can be seen in the timing diagrams of Figures 2 and 3, the driver RD restart will be anticipated. In advance, it is understood that when the driver wishes to position the gearbox 6 in the rolling position D or recoil position R, the nominal torque C offered by the engine 2 will be available. Thus, the beginning of the torque increase phase C coincides with the detection of the depressing of the brake pedal 5 and the RD restart of the vehicle 1. [0049] This then results in a good reactivity of the vehicle 1 to the wish driver acceleration and better conditions of use of the vehicle 1 for the driver. In addition, the stop function and automatic restart of the vehicle 1 is preserved and even improved since it can work even if the vehicle 1 is equipped with a manual parking brake and the driver does not disable it or not entirely. Finally, it will be noted that when the engine 2 is stopped (A = 1) and the driver depresses the brake pedal 5 (F = 1), then the passage of the gearbox 6 of the position D of driving at the parking position P does not cause the engine 2 to restart (RD = 0) when the brake pedal 5 is released (F = 0).
    权利要求:
    Claims (4)
    [0001]
    REVENDICATIONS1. A method of managing a motor vehicle internal combustion engine (2) (1), the vehicle (1) comprising: a brake pedal (5) capable of a depressed position for braking the vehicle (1) and a relaxed position having no influence on the vehicle (1), and an automatic gearbox (6) which can adopt a rolling position (D) for allowing the vehicle (1) to move forward, a position (R) recoil for allowing the vehicle to recoil (1), a neutral position (N) for separating the engine (2) from a vehicle drive circuit (1), and a parking position (P) for blocking the driving wheels of the vehicle (1) during parking, characterized in that this method comprises a step of analyzing the state of the engine (2), the brake pedal (5) and the gearbox (6). ) of speeds so that if the engine is off, a driver of the vehicle (1) places the gearbox (6) in position (P) of pa rking and depresses the brake pedal (5), then the engine (2) is restarted.
    [0002]
    2. Management method according to claim 1, characterized in that if the engine is started, that the driver depresses the brake pedal (5), the driver positions the gearbox (6) in position (P) parking from the rolling position (D), the recoil position (R) or the neutral position (N) and that the driver releases the brake pedal (5), then the engine (2) is stopped.
    [0003]
    3. Calculator (3) for carrying out the method according to claim 1 or claim 2, the computer (3) being coupled to members of a vehicle (1) automobile.
    [0004]
    4. Vehicle (1) automobile comprising an internal combustion engine (2), a battery (4), a brake pedal (5), an automatic gearbox (6) and a computer (3) according to claim 3.35
    类似技术:
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    同族专利:
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    CN107531240A|2018-01-02|
    引用文献:
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    CN103407448B|2013-06-26|2016-03-30|上海凌翼动力科技有限公司|Driving engine start-stop control system|JP6661688B2|2018-03-20|2020-03-11|本田技研工業株式会社|vehicle|
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    法律状态:
    2016-01-22| PLFP| Fee payment|Year of fee payment: 2 |
    2016-08-05| PLSC| Publication of the preliminary search report|Effective date: 20160805 |
    2017-01-24| PLFP| Fee payment|Year of fee payment: 3 |
    2018-01-23| PLFP| Fee payment|Year of fee payment: 4 |
    2018-06-29| CA| Change of address|Effective date: 20180312 |
    2018-06-29| CD| Change of name or company name|Owner name: PEUGEOT CITROEN AUTOMOBILES SA, FR Effective date: 20180312 |
    2020-01-22| PLFP| Fee payment|Year of fee payment: 6 |
    2021-01-20| PLFP| Fee payment|Year of fee payment: 7 |
    2022-01-19| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1550775A|FR3032164B1|2015-02-02|2015-02-02|METHOD FOR MANAGING THE STOPPING AND RESTART OF AN INTERNAL COMBUSTION ENGINE|FR1550775A| FR3032164B1|2015-02-02|2015-02-02|METHOD FOR MANAGING THE STOPPING AND RESTART OF AN INTERNAL COMBUSTION ENGINE|
    EP16703595.5A| EP3253963A1|2015-02-02|2016-01-22|Method for controlling the automatic stop and restart function of an internal combustion engine|
    PCT/FR2016/050128| WO2016124834A1|2015-02-02|2016-01-22|Method for controlling the automatic stop and restart function of an internal combustion engine|
    CN201680008021.5A| CN107531240A|2015-02-02|2016-01-22|The control method for being automatically stopped and resetting function of explosive motor|
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