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Control method and system device for automatic idle-speed starting and stopping of hybrid power vehicle engine

A hybrid electric vehicle, idling start-stop technology, applied in the direction of engine control, machine/engine, mechanical equipment, etc., can solve the problems of reducing fuel economy and large fuel consumption of hybrid electric vehicles, so as to improve fuel economy and increase Idle stop time, the effect of expanding the range of conditions

Active Publication Date: 2012-06-20
HUNAN CSR TIMES ELECTRIC VEHICLE
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Problems solved by technology

[0009] The technical problem to be solved by the present invention is: in the prior art, the engine is stopped only when the hybrid electric vehicle is in a long-time idling parking condition (such as waiting for a traffic light), while the hybrid electric vehicle is still in motion. A large number of idling conditions, at this time the engine does not work but consumes a lot of fuel, which reduces the fuel economy of hybrid vehicles

Method used

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  • Control method and system device for automatic idle-speed starting and stopping of hybrid power vehicle engine
  • Control method and system device for automatic idle-speed starting and stopping of hybrid power vehicle engine

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] Such as figure 1 As shown, a control method for automatic idling start and stop of a hybrid electric vehicle engine. The engine detection system collects the driver's console panel switch, motor speed, energy storage system voltage, and pedal depth parameters of a hybrid hybrid electric bus to judge the current state of the vehicle. When the working conditions, so as to give the command to stop or start the engine; engine stop is through the vehicle controller to send instructions to the engine ECU to stop the engine; when the engine needs to start, the vehicle controller gives a wake-up signal, and through the The generator controller issues a drive command, and the generator can drive the engine to a certain speed to realize the function of starting the engine.

[0029] The detection control strategy described is:

[0030] Detect the...

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Abstract

The invention discloses a control method and system device for automatic idle-speed starting and stopping of an engine. The control method comprises the steps of: detecting and showing the voltage of an energy storage system, the vehicle speed, the rotation speed of the engine, the vehicle sliding state, pressure of a gas braking system and other signals, and selectively starting and stopping the engine based on the signals. Compared with the prior art, the control method and system device disclosed by the invention have the advantages that the condition range of the idle-speed starting and stopping of the hybrid power carriages is enlarged, the fuel is greatly saved, and the engine is intelligently and automatically controlled.

Description

technical field [0001] The present invention relates to a hybrid electric vehicle, in particular to an engine idle speed control method and a system device of a hybrid electric vehicle, and more specifically, to a control method for automatic idle start and stop of a hybrid electric vehicle engine, which automatically controls the engine according to the operating conditions of the entire vehicle idling stop-start, saving fuel to the greatest extent. Background technique [0002] The global oil crisis and climate deterioration have put forward higher requirements for energy conservation and emission reduction. Due to its significantly improved fuel economy and emission performance compared to conventional cars, hybrid electric buses are considered to be an ideal means of transportation for some time to come. The hybrid hybrid bus combines the advantages of pure electric, series and parallel hybrid buses, and has become a hot research topic. [0003] The working principle o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D29/02
Inventor 盛旺王文明裴海灵谢勇波
Owner HUNAN CSR TIMES ELECTRIC VEHICLE
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