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Vehicle cold start control method and device

A technology of a starting control device and an engine controller, which is applied to the starting of the engine, the starting of the motor for the engine, the engine components, etc., can solve the problems of failure to start successfully and increase the production cost, and achieve the effect of improving the success rate and improving the reliability.

Active Publication Date: 2020-04-21
ZHEJIANG FENGRUI ENGINE CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, changing the battery will increase the production cost of the vehicle more, and there are still problems that cannot be started successfully, which cannot fundamentally solve the problem

Method used

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  • Vehicle cold start control method and device
  • Vehicle cold start control method and device

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Embodiment Construction

[0025] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0026] Such as figure 1 As shown, the vehicle cold start control method includes: judging whether the start condition is met according to the signal transmitted by the PEPS one-key start button 7 and the gear signal transmitted by the TCU 4;

[0027]When the PEPS one-button start button 7 transmits a pressed signal and the vehicle gear collected by the TCU 4 is the P gear, it is judged that the starting condition is met, and the PEPS controller 1 sends a starting request signal to the engine through the GW gateway 3 Controller 2, the engine controller 2 controls the second relay KA2 to pull in, and the PEPS controller 1 controls the first relay KA1 to pull in, and the battery 6 and the starter are activated through the sim...

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Abstract

The invention provides a vehicle cold start control method and device, and belongs to the technical field of automobiles. The problem that in the prior art, an engine cannot be successfully started under the extremely cold condition is solved fundamentally. The vehicle cold start control method comprises the steps that when that the starting condition is met is determined, a PEPS controller sendsa starting request signal to an engine controller through a GW gateway, the engine controller controls a second relay KA2 to be attracted, the PEPS controller controls a first relay KA1 to be attracted, and a storage battery and a starter are connected through simultaneous attraction of the first relay KA1 and the second relay KA 2; when the communication stop fault of the PEPS controller and theGW gateway occurs, the engine controller continues to receive the signal within a preset time value I; and the PEPS controller continues to send the starting request signal to the engine controller after communication is recovered within a preset time value II, and the preset time value I is larger than the preset time value II. The invention further provides the vehicle cold start control device.According to the vehicle cold start control method and device, the success rate of vehicle cold start can be increased.

Description

technical field [0001] The invention belongs to the technical field of automobiles, and relates to a vehicle cold start control method and a device thereof. Background technique [0002] Starter and battery are important components in the vehicle starting system. In the product design and development stage, after the selection of the starter and battery is completed, there is generally no problem in starting the vehicle under normal temperature conditions. However, under extremely cold conditions, the battery is used as the power source of the car, the internal resistance of the electrolyte in the battery increases, and the discharge capacity of the battery weakens. At the same time, the decrease in ambient temperature leads to an increase in the viscosity of the engine oil and an increase in the starting resistance torque of the engine. Under extremely cold conditions, due to the weakening of the battery performance and the increase of the engine resistance torque, the owne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02N11/08
CPCF02N11/0803F02N11/0862F02N11/087F02N2011/0874Y02T10/40
Inventor 祝君志赵保军包曙光许雅丽王雅南王超孙道培汪名月赵福成王瑞平
Owner ZHEJIANG FENGRUI ENGINE CO LTD
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