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Detection control method for accelerator mistakenly stepping of passenger vehicle

A technology of detection and control and wrong stepping on the accelerator, which is applied to the safety devices of the power plant control mechanism, tractors, motor vehicles, etc., and can solve the problems of false positives and false negatives of the obstacle detection system, and it is difficult to cover all-weather application scenarios, etc. , to achieve the effect of avoiding accidents, strong consistency, and preventing interference

Active Publication Date: 2019-11-19
上海申沃客车有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this judgment relies on the obstacle detection system around the vehicle, which is difficult to cover all-weather application scenarios, and the obstacle detection system also has a certain risk of false positives or false negatives

Method used

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  • Detection control method for accelerator mistakenly stepping of passenger vehicle
  • Detection control method for accelerator mistakenly stepping of passenger vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0049] Embodiment: This embodiment is applied to a bus with an independent vehicle controller 1 .

[0050] The vehicle controller 1 directly collects the accelerator pedal hard wire signal, and the vehicle controller 1 receives the brake pedal signal through the hard wire or bus. When the vehicle is at rest or at a low speed, the accelerator pedal is detected by mistake: first judge the release time of the brake pedal, that is, the time elapsed since the last time the brake pedal was depressed to release, if the time is less than 3 seconds Threshold, the accelerator pedal misstepping detection will not be performed, and the vehicle is running normally; otherwise, the accelerator pedal misstepping detection will be performed. Accelerator pedal action is usually a driver's conscious request to accelerate or take off, such as in typical hill start conditions. The method of detecting the accelerator pedal is specifically to calculate the maximum stroke change rate and the acceler...

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PUM

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Abstract

The invention discloses a detection control method for accelerator mistakenly stepping of a passenger vehicle. The detection control method comprises the following steps that S1, a vehicle state signal is acquired; S2, whether the vehicle is in a static or low-speed state or not is judged, if yes, step 3 is executed, and otherwise, step 8 is executed; S3, whether the release time of a brake pedalis less than a time threshold value or not is judged, if yes, step 4 is executed, and otherwise, step 8 is executed; S4, whether the accelerator pedal change rate exceeds an accelerator pedal change rate threshold value and whether the depth of the accelerator pedal is larger than an accelerator pedal depth threshold value or not are judged, and if yes, step 5 is executed, and otherwise, step 8 isexecuted; S5, the accelerator is mistakenly stepped, and an accelerator pedal mistakenly stepping control preventing mode is entered; S6, whether the accelerator pedal is released and the brake pedalis stepped down or not is judged, if yes, step 5 is returned and executed, and otherwise, step 8 is executed; S7, the accelerator pedal mistakenly stepping control preventing mode is stopped; and S8,the passenger vehicle normally runs. According to the detection control method, the accelerator mistakenly stepping behavior can be accurately detected under a low-speed entering and exiting drivingscene, and the response of a power system is properly controlled.

Description

technical field [0001] The invention relates to a method for controlling a power system of an automobile, in particular to a method for detecting and controlling a passenger car to prevent accidental stepping on the accelerator. Background technique [0002] During the operation and use of buses, there are relatively frequent low-speed driving in and out scenarios. The driver’s labor intensity is high, and pedestrians and bicycles are prone to suddenly appear around the vehicle. When dealing with this emergency situation, the driver has to Mistaking the accelerator pedal for a sudden step on the brakes can lead to serious accidents. [0003] In order to avoid the accidents of accidentally stepping on the accelerator, many vehicles have adopted the technology of preventing the accidental stepping on the accelerator pedal, such as: Chinese invention patent application CN201710319061. The sensor unit for measuring human physiological indicators collects in real time whether th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K28/14B60K28/02B60K35/00B60T7/12
CPCB60K28/14B60K28/02B60K35/00B60T7/12
Inventor 张军张显胜费栋梁
Owner 上海申沃客车有限公司
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