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Method for recovering torque for an engine during automatic control

An automatic driving and engine technology, applied in the directions of driver input parameters, external condition input parameters, control devices, etc., can solve problems such as torque interference, indirect interference of torque setting value, and failure to meet the requirements of automatic adjustment accuracy

Pending Publication Date: 2020-05-12
PEZHO SITROEN AUTOMOBILS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first effect is that consumable auxiliary components draw torque that should be used for driving
The second effect is that consumable auxiliary components interfere with the actual torque delivered to the wheels
[0007] The difficulties arising from this information are as follows: the conversion of this information in the pedal reference does not meet the precision requirements required for automatic regulation
In addition, this information is based on the torque setpoint requested by the autopilot system, which itself is indirectly disturbed by auxiliary elements

Method used

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  • Method for recovering torque for an engine during automatic control
  • Method for recovering torque for an engine during automatic control
  • Method for recovering torque for an engine during automatic control

Examples

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Embodiment Construction

[0029] It should be noted that the drawings are given as examples and not as limitations of the invention. The drawings form schematic principles intended to facilitate the understanding of the invention and are not necessarily to scale of actual application. In particular, the dimensions shown for the various elements do not represent actual ones.

[0030] In the following, reference will be made to all figures taken in combination. When reference is made to one or more specific figures, those figures should be used in combination with other figures for identification of the designated numerical designation.

[0031] by special reference figure 1 , the motor vehicle is used for implementing a method of recovering torque for a powertrain including an engine 1 of the motor vehicle during automatic driving involved in the present invention, and the vehicle is equipped with at least the following elements in addition to the engine 1 .

[0032] The engine may be a heat engine, ...

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PUM

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Abstract

The invention concerns a method for recovering torque for a motor vehicle engine during automatic control delivering a torque setpoint (V cons) for the engine. The torque produced at at least one wheel is monitored with a comparison of the torque setpoint (V cons) and a delivered torque (CR). When a difference between the delivered torque (CR) and the torque setpoint (V cons) is outside a predetermined variation range defined to ensure automatic control, at least one auxiliary torque (C Prel EA) requested by an auxiliary element is identified, the auxiliary torque (C Prel EA) being taken fromthe engine torque. When the auxiliary torque (C Prel EA) is identified, the auxiliary torque (C Prel EA) is completely or partially offloaded with a sufficient reduction in order to reach the torque setpoint (V cons).

Description

technical field [0001] The present invention relates to a method of recovering torque for a powertrain comprising a motor vehicle engine by a hold / load shed request during automated driving. The invention also relates to a motor vehicle comprising an automated driving system for carrying out such a method, in particular for the longitudinal movement of the vehicle. The engine may be a thermal engine associated or not with an engine that ensures non-thermal drive. Background technique [0002] For example, motor vehicles may be equipped with radar or camera systems to enable automatic movement of the vehicle and / or automatic parking systems. [0003] Such an automatic driving system can control the powertrain in the range corresponding to the minimum and maximum load of the powertrain, for example, the output of the minimum torque corresponds to the driver's foot off the accelerator pedal, and the output of the maximum torque The output corresponds to the full load of the p...

Claims

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Application Information

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IPC IPC(8): B60W30/188B60W10/04B60W10/10B60W10/30B60W30/06B60W50/08
CPCB60W50/082B60W10/04B60W10/10B60W10/30B60W30/06B60W30/1886B60W2050/009B60W2510/0676B60W2510/087B60W2510/305B60W2520/10B60W2520/30B60W2710/0666B60W2710/305B60W2555/40B60W2540/215B60W2552/15B60W2555/20
Inventor 瓦勒缇娜·斯艾勒弗朗索瓦·查纳特白提斯特·兰博特
Owner PEZHO SITROEN AUTOMOBILS SA
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