System and method for detecting clutch position of hybrid power vehicle

A hybrid electric vehicle, clutch position technology, applied to the control device, vehicle components, transportation and packaging, etc., can solve the problems of vehicle power feeding and affecting the life of the power battery, etc., and achieve the effect of increasing the service life

Active Publication Date: 2010-08-04
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the application of hybrid power system, it is easy to cause the whole vehicle to feed power due to the inaccurate judgment of the clutch position, and even seriously affect the life of the power battery

Method used

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  • System and method for detecting clutch position of hybrid power vehicle
  • System and method for detecting clutch position of hybrid power vehicle
  • System and method for detecting clutch position of hybrid power vehicle

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Embodiment Construction

[0023] Further illustrate content of the present invention below in conjunction with accompanying drawing:

[0024] The moderate hybrid clutch position detection mechanism includes a high switch, a low switch, a pressure sensor, and a vehicle control system. The vehicle controller collects the clutch pedal high and low position switch signal and the clutch pipeline pressure signal, and performs clutch position detection and diagnosis according to the collected signal.

[0025] The installation positions of the high position switch and low position switch on the vehicle are as follows: figure 1 Shown: the low position switch 2 is installed on the vehicle, and is located at the position where the pedal arm just compresses its thimble when the clutch pedal is stepped on to position 4; while the high position switch 1 is installed on the vehicle, and is located at the position when the clutch pedal is released to position 3 , the pedal arm is exactly where it compresses its thimb...

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PUM

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Abstract

The invention relates to a system and method for detecting the clutch position of a mild hybrid power vehicle. The system comprises a high-level switch, a low-level switch, a pressure sensor in a clutch line and a vehicle control system. On the one hand, the vehicle control system plugs 5V input power into the high-level switch and the low-level switch, provides reference voltage to the pressure sensor in the clutch line and simultaneously acquires the output voltage of the high-level switch and the low-level switch through a digital signal acquisition port; the output signal values of the high-level switch and the low-level switch are 1 or 0; on the other hand, the vehicle control system acquires the output voltage of the pressure sensor in the clutch line through an AD sampling port andcalculates corresponding pressure in the clutch line by checking the characteristic diagram of the sensor. The vehicle control system detects and diagnoses the clutch position according to the acquired signal to ensure the normal functions (driving charging, energy recovery, accelerating power assistance and the like) of the hybrid power control system not to be affected due to inaccurate judgment of the clutch position. The system can prolong the service life of the power battery of the hybrid power system.

Description

technical field [0001] The invention relates to a clutch position detection technology of a hybrid electric vehicle, specifically refers to that a vehicle control system judges the position of the clutch by collecting sensor signals related to the clutch position, so as to provide necessary calculation conditions for vehicle control. Background technique [0002] Compared with traditional cars, hybrid cars have added components such as drive motors and power batteries, and added functions such as motor assist, motor charging, and energy recovery. The position of the clutch has a great influence on the realization of these functions. If the position of the clutch is not detected accurately, it will lead to abnormal function of the hybrid power system, which will affect the normal driving of the vehicle. Serious failures of power system components such as power battery life, etc. Therefore, accurately obtaining the position of the clutch pedal becomes an indispensable link in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K23/02
Inventor 苏岭严钦山李宗华刘小俊
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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