Power delay system for automobile electric control unit

A technology of automotive electronic control unit and delay system, which is applied to vehicle components, circuits or fluid pipelines, transportation and packaging, etc., can solve the problems of inapplicability, high cost, and poor reliability, so as to improve reliability and facilitate Implementation, low cost effect

Active Publication Date: 2012-10-31
奇瑞新能源汽车股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this solution is not flexible enough due to the fixed time of the delay relay. It is not suitable for occasions where the delay working time of the electronic control unit is u

Method used

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  • Power delay system for automobile electric control unit

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Embodiment 1

[0019] Such as figure 1 As shown, the automotive electronic control unit power delay system of the present embodiment includes an electronic switch unit 1, an electronic control unit 2, a car key ignition switch 3, a delay circuit 4, a signal verification unit 5, and the electronic switch unit 1 has a power input Terminal Vcc-In, power supply output terminal Vcc-Out, first control terminal C1 and second control terminal C2, power supply input terminal Vcc-In is connected with the low-voltage power supply 6 of the car, and is always high level; power supply output terminal Vcc-Out It is connected with the power input terminal of the electronic control unit 2, and the first control terminal C1 is connected with the ON gear power signal terminal KL of the car key ignition switch 3; the input terminal of the delay circuit 4 is connected with the key switch status signal terminal of the car key ignition switch 3 SIGNAL_1 is connected, and the output terminal SIGNAL_2 of the delay c...

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PUM

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Abstract

The invention provides a power delay system for an automobile electric control unit, which is flexible and reliable to control, and low in cost and power consumption and meets the requirements of the conventional automobiles. The power delay system for the automobile electric control unit particularly comprises an electronic switch unit, an electric control unit, an automobile key ignition switch, a delay circuit and a signal verification unit, wherein the electronic switch unit comprises a power input end, a power output end, a first control end and a second control end; the power input end is connected with a low-voltage power supply of the automobile; the power output end is connected with the power input end of the electric control unit; the first control end is connected with the ON-gear power signal end of the automobile key ignition switch; the input end of the delay circuit is connected with the key on-off state signal end of the automobile key ignition switch; the output end of the delay circuit is connected with the first input end of the signal verification unit; the electric control unit receives a key on-off state signal of the automobile key ignition switch and outputs a control signal to the second input end of the signal verification unit; and the output end of the signal verification unit is connected with the second control end of the electronic switch unit.

Description

technical field [0001] The invention belongs to the technical field of automobile electronics, and in particular relates to a power supply delay system of an automobile electronic control unit. Background technique [0002] With the development of automobile technology, more and more electronic control unit components are used in automobiles, such as engine electronic control unit, vehicle electronic control unit, automatic transmission electronic control unit, motor control unit and battery management electronic control unit, etc. . These electronic control units still need to work for a period of time for data storage, automatic window closing, or cooling system work after the driver stops and pulls out the car key, or when the car encounters a fault and the 12V battery is powered off. Therefore, it is necessary to design a delay system for the power supply of these electronic control units. [0003] At present, this power delay method generally adopts the cooperation co...

Claims

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Application Information

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IPC IPC(8): B60R16/03
Inventor 吴瑞林伟义邵平凌欢
Owner 奇瑞新能源汽车股份有限公司
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