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Starter control method and relay diagnosis method

A diagnostic method and relay technology, which are applied to combustion engines, engine components, engine starting, etc., can solve the problems of shortening service life, heating and aging, and inability to diagnose the first relay and the second relay in time, so as to prolong the service life. , The effect of avoiding after-sales maintenance and reducing the probability of heating and aging

Active Publication Date: 2021-09-28
UNITED AUTOMOTIVE ELECTRONICS SYST
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Problems solved by technology

[0006] The purpose of the present invention is to provide a starter control method and a relay diagnosis method to solve the problem that in the prior art, the second relay is engaged for a long time to cause heating and aging to shorten its service life, and the current relay diagnosis method cannot diagnose the first relay in time and all failure problems of the second relay

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  • Starter control method and relay diagnosis method
  • Starter control method and relay diagnosis method
  • Starter control method and relay diagnosis method

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Embodiment Construction

[0038] The specific implementation manner of the present invention will be described in more detail below with reference to schematic diagrams. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0039] As mentioned in the background technology, in the existing relay control method, there will be unnecessary pull-in of the second relay, and at the same time, the front relay diagnosis method cannot diagnose all faults of the first relay and the second relay in time, and there are potential safety hazards. Not conducive to after-sales maintenance.

[0040] Therefore, in order to solve the above problems in the manufacture of automotive electronics, the present invention provides a starter control method. ...

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Abstract

The present invention provides a starter control method and a relay diagnosis method. Using the starter control method provided by the present invention avoids unnecessary pull-in of the second relay, reduces the probability of its heating and aging, and prolongs the service life of the relay At the same time, using the relay diagnosis method provided by the present invention, the failures such as open circuit and adhesion of the first and second relays can be diagnosed in time, which effectively solves the problems that the previous diagnosis scheme cannot report the adhesion failure of the first relay, which is beneficial to after-sales maintenance. Safety hazards are avoided.

Description

technical field [0001] The invention relates to the field of automotive electronics manufacturing, in particular to a starter control method and a relay diagnosis method. Background technique [0002] In the existing AT (automatic transmission) type with automatic start-stop at idle speed, the starter is generally controlled by the first relay and the second relay. The first relay pulls in after receiving the pull-in request from the electronic control unit. The second relay pulls in when the transmission chain is disconnected. After the first and second relays pull in, the starter is powered on and starts to drive. After the start is completed, the first relay and the second relay are disconnected to terminate the starter's drag. [0003] There are two following deficiencies in the current control method: [0004] (1) The second relay is engaged for a long time when the transmission chain is disconnected. If the electronic control unit is powered on and the engine does not...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02N11/08F02N11/10
CPCF02N11/08F02N11/108Y02T10/40
Inventor 申付松刘勤范宁生张辰燕
Owner UNITED AUTOMOTIVE ELECTRONICS SYST