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Method for diagnosing and processing faults of accelerator pedal of medium hybrid electric vehicle

A hybrid vehicle, accelerator pedal technology, applied in vehicle components, vehicle testing, machine/structural component testing, etc., can solve problems such as acceleration, danger, affecting the power and safety of the entire vehicle, etc.

Active Publication Date: 2011-01-19
江西鼎盛新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It can be seen from this that the accelerator pedal signal directly affects the power and safety of the vehicle. For example, when braking is required, it is very dangerous to accelerate due to an accelerator pedal failure.

Method used

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  • Method for diagnosing and processing faults of accelerator pedal of medium hybrid electric vehicle
  • Method for diagnosing and processing faults of accelerator pedal of medium hybrid electric vehicle
  • Method for diagnosing and processing faults of accelerator pedal of medium hybrid electric vehicle

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Embodiment Construction

[0014] The content of the present invention is further described in detail below in conjunction with accompanying drawing:

[0015] figure 1 Describes the hardware involved in the present invention and the connection schematic diagram, and the involved hardware includes an accelerator pedal mechanism (including accelerator pedal and sensors, etc.) and a vehicle controller HCU. The accelerator pedal sensor is connected to the analog input pin of the vehicle controller HCU through a hard wire, and converts the accelerator pedal opening into two analog signals, that is, signal 1 and signal 2, which are output to the vehicle controller HCU.

[0016] figure 2 Describes the diagnostic process of the vehicle controller for accelerator pedal faults, as follows:

[0017] 1. The driver operates the accelerator pedal, and the accelerator pedal sensor converts the pedal position information into a voltage analog signal and outputs it to the vehicle controller HCU;

[0018] 2. After th...

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Abstract

The invention relates to a method for diagnosing and processing faults of an accelerator pedal of a medium hybrid electric vehicle, which is required to be protected. The method comprises the following steps of: processing signals of the accelerator pedal; performing overrun diagnosis and reasonable diagnosis on a hybrid control unit; and setting different zonebits according to different faults of the accelerator pedal, processing the signals differently and performing different limitations on the functions of the whole vehicle. The method has the advantages of performing accurate fault diagnosis on the signals of the accelerator pedals and greatly reducing the influence of a pedal mechanism on the safety of the whole vehicle in acceleration faults.

Description

technical field [0001] The invention belongs to fault diagnosis and processing technology of vehicle components, in particular to a fault diagnosis and processing method of an accelerator pedal signal. Background technique [0002] The vehicle accelerator pedal signal reflects the driver's demand for vehicle power, and is the main component for the driver to control the vehicle. The hybrid vehicle vehicle controller understands the driver's power demand through the accelerator pedal signal, and converts this power demand into Torque demand, and the torque command is sent to the engine control unit ECU and the motor control unit IPU, and the engine control unit ECU and the motor control unit IPU execute the torque command. It can be seen from this that the accelerator pedal signal directly affects the power and safety of the vehicle. For example, it is very dangerous to accelerate due to an accelerator pedal failure when braking is required. The general diagnostic method is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R16/02G01M17/007
Inventor 刘杰严钦山翟钧邓柯军苏岭
Owner 江西鼎盛新材料科技有限公司
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