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Fuel cell hydrogen energy electric vehicle emergency accelerator mis-operation protection method and system

A fuel cell and electric vehicle technology, applied in electric vehicles, battery/battery traction, power management, etc., can solve traffic accidents and other problems

Active Publication Date: 2021-02-23
WUHAN GROVE HYDROGEN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the technical problem that when the drive motor of the existing fuel cell hydrogen energy electric vehicle is in the constant torque speed range of external characteristics, the fuel cell hydrogen energy electric vehicle speeds up rapidly due to the driver's sudden accelerator misoperation, which easily leads to the technical problem of traffic accidents

Method used

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  • Fuel cell hydrogen energy electric vehicle emergency accelerator mis-operation protection method and system
  • Fuel cell hydrogen energy electric vehicle emergency accelerator mis-operation protection method and system
  • Fuel cell hydrogen energy electric vehicle emergency accelerator mis-operation protection method and system

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Experimental program
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Embodiment 2

[0065]referenceimage 3The difference between this embodiment and Embodiment 1 lies in that in the step S7, it further includes:

[0066]The vehicle controller 1 controls the instrument panel 4 of the fuel cell hydrogen electric vehicle to issue an alarm signal, and the alarm signal includes a buzzer sound and / or a warning sign;

[0067]In the step S8, the throttle depth sensor 6 collects the third throttle depth value of the fuel cell hydrogen electric vehicle; the third throttle depth value is the vehicle controller 1 outputting the third preset throttle After the depth value, the accelerator depth value of the accelerator pedal of the fuel cell hydrogen electric vehicle collected by the accelerator depth sensor 6.

[0068]In the step S9, the vehicle controller 1 determines whether the third throttle depth value is less than or equal to the fourth preset throttle depth value; when the third throttle depth value is less than or equal to the fourth preset throttle depth value When the vehicle...

Embodiment 3

[0070]This embodiment provides a computer-readable storage medium, the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, realizes the fuel cell hydrogen electric vehicle emergency throttle error described in Embodiment 1. Operation protection method. Exemplarily, the computer storage medium includes a U disk, a mobile hard disk, a magnetic disk, an optical disk, a read-only memory (ROM, Read-Only Memory), and a random access memory (RAM, Random Access Memory).

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Abstract

The invention provides a fuel cell hydrogen energy electric vehicle emergency accelerator mis-operation protection method and system, and relates to the technical field of fuel cell hydrogen energy electric vehicle control. The method comprises the steps that collecting and judging whether the rotating speed of a driving motor is in an external characteristic constant-torque rotating speed interval; collecting and judging whether a first accelerator depth value is greater than or equal to a first preset accelerator depth value or not; judging whether the time for changing the first acceleratordepth value from the second preset accelerator depth value to the first preset accelerator depth value is less than a preset time threshold value or not; calculating a first motor target torque valueaccording to a third preset accelerator depth value, and sending the first motor target torque value to a driving motor controller; and controlling the driving motor to drive a fuel cell hydrogen energy electric vehicle according to the first motor target torque value by the driving motor controller. Accidents caused by rapid acceleration of the fuel cell hydrogen energy electric vehicle due to mis-operation of a driver on an emergency accelerator when the driving motor is in an external characteristic constant torque rotating speed interval can be effectively prevented.

Description

Technical field[0001]The invention relates to the technical field of fuel cell hydrogen energy electric vehicle control, in particular to a fuel cell hydrogen energy electric vehicle emergency accelerator misoperation protection method and system.Background technique[0002]Fuel cell hydrogen-energy electric vehicles drive the vehicle by driving the motor. When the driver is unskilled or tired, it is easy to accidentally step on the accelerator, the accelerator pedal is used as the brake pedal, and other sudden accelerator misoperation conditions; because the drive motor is in The external characteristic constant torque speed range responds to the torque of the accelerator very quickly. When the driver of the fuel cell hydrogen electric vehicle experiences the above-mentioned sudden accelerator misoperation conditions, the torque output by the fuel cell hydrogen electric vehicle controller will be very large. The rapid acceleration of fuel cell hydrogen electric vehicles can easily le...

Claims

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Application Information

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IPC IPC(8): B60L15/20B60K35/00B60L50/70
CPCB60L15/20B60K35/00B60L50/70B60L2240/421B60L2240/423Y02T10/72Y02T90/40
Inventor 梅建元郝义国
Owner WUHAN GROVE HYDROGEN AUTOMOBILE CO LTD
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