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Method and device for preventing undesired acceleration of a motor vehicle

A technology for motor vehicles and parking status, which is applied in the direction of motor starting for motor vehicles and engines, safety devices of power plant control mechanisms, etc., which can solve problems such as unusability, and achieve the effects of preventing danger, quick response, and low implementation cost

Active Publication Date: 2019-03-29
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Furthermore, this method cannot be used in the case of hybrid drive systems, since with multiple drive motors they have temporally different profiles of the rotational speed and rotational speed gradient due to the interconnected electrically adjustable couplings.
Fault detection is therefore not possible with the aid of these variables

Method used

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  • Method and device for preventing undesired acceleration of a motor vehicle
  • Method and device for preventing undesired acceleration of a motor vehicle
  • Method and device for preventing undesired acceleration of a motor vehicle

Examples

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Embodiment Construction

[0024] figure 1 A motor vehicle 1 is shown schematically with a drive train 2 , for example designed as an internal combustion engine, which is connected via a coupling 3 to a drive train (not shown). Drive system 2 is actuated via motor controller 4 , in particular based on a torque request from the driver or a driver assistance system (not shown).

[0025] The torque request can be given by the driver by actuating the accelerator pedal 5 . In addition, a brake pedal 6 can be provided, by actuating which the driver signals the desire to perform a braking operation or a request for braking. Based on the torque request in the form of the driver's desired torque, which is derived, for example, from the accelerator pedal position of accelerator pedal 5 , motor controller 4 ascertains the corresponding actuated or regulated variable for drive system 2 .

[0026] Drive system 2 may be designed as a hybrid drive system and comprise an internal combustion engine as first drive moto...

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PUM

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Abstract

The present invention relates to a method for monitoring a vehicle (1) wherein a drive system (2) having a plurality of drive motors (21, 22) is mounted. In accordance with a monitoring method for a stopping state based on an output or energy, the vehicle (1) is placed in a stopping state, and if at least one output condition or energy condition based on output balance of instant machine outputs of all the connected drive motors or energy balance of energy which is instantly supplied is satisfied, an error reaction is triggered (S5).

Description

technical field [0001] The invention relates generally to motor vehicles and in particular to a method for operating a motor system for a motor vehicle, with which undesired acceleration of the motor vehicle can be avoided. Background technique [0002] The operation of motor systems in motor vehicles is critical for safety, so a series of measures are provided for monitoring proper functioning. Three-level concepts (Drei-Ebenen-Konzept) are common especially in monitoring, in which the controller function is monitored via torque-based or acceleration-based monitoring functions. This prevents undesired acceleration of the motor vehicle, which could be caused, for example, by a software fault or a hardware fault in the motor controller. [0003] The monitoring usually triggers an error response if the detected motor torque or the detected acceleration of the motor vehicle is implausible and / or if a predetermined maximum permissible monitored variable value is exceeded. This...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W30/18B60W20/10B60W10/06B60W10/08
CPCB60K28/10B60W10/06B60W10/08B60W30/18F02D45/00B60W20/50B60W2050/022B60W2510/0666B60W2510/085F02D41/22F02D2200/1012F02N11/08
Inventor D.科瓦克G.庞格拉茨
Owner ROBERT BOSCH GMBH
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