Method and system for controlling air intake heating of hybrid electric engine and hybrid electric vehicle

A technology of engine controller and hybrid power, applied in the direction of engine control, engine starting, engine components, etc., can solve the problems affecting intake air heating and so on
CN110230564BActive Publication Date: 2020-04-03WEICHAI POWER CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
WEICHAI POWER CO LTD
Publication Date
2020-04-03

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Abstract

The invention provides a hybrid power engine intake heating control method. When an engine is started, a key switch ignites to electrify the whole vehicle. At the moment, a hybrid power unit coordinating controller controlling a whole vehicle system to operate monitors the intake temperature, and the hybrid power unit controls whether the engine controller needs to get into an intake heating procedure or not. When intake gas needs heating, the engine controller gets into the engine starting procedure after controlling intake gas to be heated and directly gets into the starting procedure when intake gas does not need heating. Intake heating is judged through cooperation of the hybrid power unit and the controller. The engine controller does not need to conduct intake heating data initialization and optimize the control program after the key switch is started each time, and the influence of starting of the key switch on the intake heating function is reduced. The invention further provides a hybrid power engine intake heating control system and a hybrid electric vehicle.
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Description

technical field

[0001] The invention relates to the technical field of hybrid electric vehicles, more specifically, to a method for controlling air intake heating of a hybrid electric engine, a control system and a hybrid electric vehicle. Background technique

[0002] After the key switch of the control system of the hybrid vehicle is turned on, the whole system is always in a charged state when it is running. The key switch is also the power switch of the ECU. When the switch is in the ON position, the ECU will be in working state. Turn off the key switch and the engine will naturally turn off.

[0003] When the key switch is turned on, the vehicle is powered on, and the engine is started at low temperature, the ECU selects the minimum temperature by monitoring various temperatures (such as intake air temperature, water temperature, etc.). Through the judgment and calculation of the temperature, the heating relay is controlled to control the grille to heat the intake air, ...

Claims

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