Idling charging mode control method and device thereof

Abstract

An idling charging mode control method and a device thereof are provided, wherein the control method of the idling charging mode includes the steps of acquiring an instantaneous torque value of an engine; and adjusting a degree of throttle opening of the engine when the instantaneous torque value is different from a predetermined target torque value. According to the idling charging mode control method provided by the embodiment of the present invention, after obtaining the instantaneous torque value of the engine and comparing the instantaneous torque value with the target torque value, the degree of throttle opening of the engine is adjusted so that the torque of the engine is always maintained at the target torque value to drive the motor to generate electricity, thus ensuring that theengine does not need to reserve a part of energy to prevent the rotation speed from changing so as to maintain the engine speed balance; and the entire power of the engine can be used to drive the motor to generate electricity, thereby making the power of the engine maximally converted to electrical energy, thus increasing the energy efficiency.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of automobiles, and in particular to a method and device for controlling an idle charging mode. Background technique [0002] A hybrid vehicle refers to a vehicle whose drive system is composed of two or more single drive systems that can operate simultaneously, and the power of the vehicle comes from a hybrid powertrain with at least two power units. Hybrid vehicles combine engines, motors and batteries, which can take advantage of the advantages of engine vehicles and electric vehicles, and are one of the effective ways to reduce oil consumption and carbon dioxide emissions. [0003] When the battery power is low, the engine will drive the motor to generate electricity, that is, idle charging. In the current hybrid system, in the idle charging mode, the engine maintains a stable speed, and the electric motor reverses to generate torque. [0004] However, when the engine is in id...

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Problems solved by technology

[0004] However, when the engine is in idling mode, on the one hand, it transmits power to the motor to generate electricity, and on the other hand, it also needs excess reserve torque (reserved by delaying the ignition angle) to eliminate some instantaneous vibration interference, so it is impossible to use all the chemical energy. Converted to electricity, resulting in much lower energy utilization than normal torque mode

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