Ancillary energy management system for mixed power automobile and control method thereof

Abstract

The invention provides an auxiliary power supply management system used for a mixed power automobile and a control method thereof. The system comprises a battery voltage detection device, a control device and a throttle opening execution mechanism; the battery voltage detection device which is electrically connected with the control device is used for detecting the voltages at two ends of the battery and sending the detection results to the control device; the control device which is electrically connected with the battery voltage detection device and the throttle opening execution mechanism is used for receiving the detection results transmitted by the battery voltage detection device, judging whether the battery is required to be charged or not and emitting the control instruction of increasing or reducing the openness of the throttle to the throttle opening execution mechanism according to the judged results; the throttle opening execution mechanism which is connected with the control device and the throttle is used for receiving the control instruction transmitted by the control device and controlling the increment or reduction of the openness of the throttle according to the control instruction. The system can effectively improve the stability and driving comfort of mixed power automobiles and simultaneously avoids the occurrence of accidents.

Description

Technical field [0001] The invention relates to a hybrid electric vehicle, and more specifically, to an auxiliary energy management system for a hybrid electric vehicle and a control method thereof. Background technique [0002] At present, because hybrid electric vehicles retain the advantages of both engine and electric drive and dilute the shortcomings of the two, they have gradually become the one that can not only meet emission and fuel economy requirements, but also have the advantages of pure electric vehicles and fuel vehicles. Ideal vehicle. Therefore, many domestic automobile manufacturers are developing hybrid vehicles and putting them into commercial production to market. [0003] Existing hybrid electric vehicles have two energy sources, namely the engine and the battery. Therefore, during the normal driving of the vehicle, when the state of charge of the battery is low and needs to be charged, the engine needs to provide additional energy to charge the battery. If t...

AI Technical Summary

Problems solved by technology

[0003] Existing hybrid electric vehicles have two energy sources, that is, the engine and the battery. Therefore, during the normal driving of the vehicle, when the state of charge of the battery is low and needs to be charged, the engine needs to provide additional energy to charge the battery. The engine load increases, resulting in a sudden decrease in vehicle speed, and when the battery charge ends, the engine load decreases, resulting in a sudden increase in vehicle speed

Such abnormal changes in vehicle speed will have a serious impact on the stability of the vehicle and driving comfort, and may even lead to traffic accidents.

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