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Method and system for protection after mistakenly stepping on acceleration pedal with intention of braking

An accelerator pedal and protection system technology, applied in the direction of automatic starting device, optical signal, signal device, etc., can solve the problems of reducing vehicle speed, pedestrian and vehicle danger, increasing vehicle speed, etc., to avoid the judgment process, reduce energy consumption, and ensure safety Effect

Active Publication Date: 2015-08-26
BEIJING BORGWARD AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For this reason, the technical problem to be solved by the present invention is that the prior art lacks corresponding judgments and protection measures for the misoperations that have occurred, which leads to not only failing to activate the regenerative braking function of the vehicle to reduce the speed of the vehicle when deceleration occurs in an emergency, but It can only increase the speed of the vehicle, causing pedestrians and vehicles to be in a more dangerous situation, thereby providing a protection method and system for accidentally stepping on the accelerator pedal under braking intentions that can accurately judge misoperation behaviors and take corresponding protection measures

Method used

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  • Method and system for protection after mistakenly stepping on acceleration pedal with intention of braking
  • Method and system for protection after mistakenly stepping on acceleration pedal with intention of braking
  • Method and system for protection after mistakenly stepping on acceleration pedal with intention of braking

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Embodiment 1

[0053] This embodiment provides a protection method for accidentally stepping on the accelerator pedal under braking intention, such as figure 1 shown, including the following steps:

[0054] S1: According to the rate of change of the accelerator pedal during the acceleration process and the amount of change in the position of the accelerator pedal during the acceleration process, it is judged whether misoperation occurs.

[0055] S2: When it is judged that misoperation occurs, activate the motor feedback braking function, reduce the vehicle speed, and activate the brake light at the same time.

[0056] The protection method for mistakenly stepping on the accelerator pedal under braking intention described in this embodiment is applicable to a pure electric vehicle or a hybrid vehicle including a motor. Because the motor has a feedback braking function, in the actual application process, if the driver mistakenly uses the accelerator pedal as the brake pedal in an emergency si...

Embodiment 2

[0059] On the basis of Embodiment 1, the protection method for accidentally stepping on the accelerator pedal under the braking intention described in this embodiment, such as figure 2 As shown, the following steps are also included before the step S1:

[0060] S0: Obtain the vehicle's motion state, and judge whether it is necessary to make a wrong operation judgment based on this, and if so, go to step S1.

[0061] As an optional implementation manner, the step S0 in this embodiment includes the following steps:

[0062] S01: Get the current speed of the vehicle.

[0063] S02: Judging whether the current speed is greater than 0, if so, it is judged that a misoperation judgment is required, and proceeding to step S1; otherwise, no misoperation judgment is required, and returning to step S01.

[0064] In a specific application, the current speed of the vehicle can be obtained directly from the vehicle-mounted OBD interface, or obtained through a speed sensor installed on the...

Embodiment 3

[0067] On the basis of Embodiment 1 or Embodiment 2, the protection method for accidentally stepping on the accelerator pedal under the braking intention described in this embodiment, such as figure 2 As shown, the step S1 includes the following steps:

[0068] S11: Set the calibration value of the rate of change and the calibration value of the position change.

[0069] S12: Obtain the rate of change of the accelerator pedal during the acceleration process and the amount of change in the position of the accelerator pedal during the acceleration process.

[0070] S13: Compare the rate of change of the acceleration process of the accelerator pedal with the calibrated value of the rate of change; compare the amount of change in the position of the accelerator pedal in the process of acceleration with the calibrated value of the position change; when the rate of change in the process of acceleration of the accelerator pedal is greater than or equal to the When the rate of chang...

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Abstract

The invention provides a method and a system for protection after mistakenly stepping on acceleration pedal with intention of braking. According to the method and the system, whether mistaken operation is performed can be judged according to the variation rate and the variable quantity of the acceleration process of the acceleration pedal and a motor regenerative braking function can be activated when the mistaken operation is performed to reduce the driving speed. Accordingly, the mistaken stepping operation on the acceleration pedal with the intention of braking can be judged accurately in real time, the mistaken operation can be judged quickly under the condition that a driver operates mistakenly, the motor regenerative braking function can be activated in time, and reverse torque can be generated by adjusting motor control currents, so that the driving speed is reduced; even if the mistaken operation occurs, a vehicle cannot be accelerated after the driver steps on the acceleration pedal, the mistaken operation can be judged accurately, and accordingly, the driving speed is reduced and the safety of pedestrians and vehicles is guaranteed.

Description

technical field [0001] The invention relates to the technical field of vehicle braking control. Specifically, it relates to a protection method and system for accidentally stepping on an accelerator pedal under a braking intention. Background technique [0002] With the continuous growth of the number of vehicles, the number of people injured and killed by traffic accidents is also high every year. Among all traffic accidents, a considerable proportion of accidents are caused by driving habits or lack of driving experience. Even experienced drivers will make operational errors when encountering emergencies, especially when braking intentionally. Misuse of the accelerator pedal is the most common. For existing vehicles with a regenerative braking function, the regenerative braking function will only be activated when the driver releases the accelerator pedal or steps on the brake pedal, thereby reducing the speed of the vehicle. If you accidentally step on the accelerator ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T7/12B60Q1/44
CPCB60Q1/44B60T7/12
Inventor 刘佳林
Owner BEIJING BORGWARD AUTOMOBILE CO LTD
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