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System and method for judging intentions to accelerate and decelerate hybrid electric vehicle

A hybrid electric vehicle, acceleration and deceleration intention technology, applied in the direction of hybrid electric vehicles, motor vehicles, transportation and packaging, etc., can solve the problem of affecting the driving performance of the whole vehicle, and can not give full play to the power and economy of the whole vehicle of the hybrid electric vehicle, etc. problems, to achieve the effect of optimizing energy distribution, improving energy efficiency, and satisfying power

Active Publication Date: 2010-10-13
江西鼎盛新材料科技有限公司
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Problems solved by technology

[0003] However, in the existing hybrid control system, there is no judgment on the driver's acceleration and deceleration demand intention, and it is impossible to accurately make the hybrid control system enter the working mode required by the driver, which may cause the system to enter the charging mode when it should not be charged. The charging mode seriously affects the driving performance of the vehicle, and cannot give full play to the power and economy of the hybrid vehicle

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  • System and method for judging intentions to accelerate and decelerate hybrid electric vehicle

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Embodiment Construction

[0019] The content of the present invention is described in detail below again in conjunction with accompanying drawing:

[0020] like figure 1 Shown is the structural block diagram of the hybrid power control system, the vehicle controller HCU 5, the motor controller IPU 6, the engine management system ECU 4, and the battery management system BCU 7 perform data transmission through CAN communication, ECU 4, IPU 6, BCU 7 Controlled by the HCU 5, the engine 1 and the motor 2 are the actuators. The HCU will judge the acceleration and deceleration intention according to the current state of the vehicle, so as to switch the state mode and obtain the required torque of the engine and the motor to meet the power demand of the vehicle. ECU4 will obtain the accelerator pedal opening signal according to the driver's accelerator pedal demand, and then transmit this signal to HCU 5 through CAN communication; HCU 5 judges the acceleration and deceleration state and switches the charging a...

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Abstract

The invention provides a system for judging the intentions to accelerate and decelerate a hybrid electric vehicle. The system comprises an HCU (hybrid vehicle control unit), an ECU (engine control unit), an IPU (motor control unit) and a BCU (battery control unit), wherein the data transmission is carried out among the HCU, the IPU, the ECU and the BCU through CAN (controller area network) communication; the ECU and the BCU are controlled by the HCU; the ECU is used for acquiring the opening signal of an accelerator pedal according to the requirement of a driver for the accelerator pedal and transmitting the opening signal to the HCU through the CAN communication; and the HCU is used for judging the intentions of acceleration and deceleration according to the current status of the hybrid electric vehicle, switching among the state modes and acquiring the required torque of an engine and a motor, so that the motor can be used for power-assisting in an accelerating state and charged in a decelerating state.

Description

technical field [0001] The invention relates to a system and method for judging the acceleration and deceleration intention of a hybrid electric vehicle, which belongs to the hybrid electric vehicle control technology. Background technique [0002] Hybrid vehicles are jointly driven by the engine and the motor, and the two work in coordination to realize the energy distribution of the power system. Its working modes include boosting, charging, energy recovery, etc. The switching between each working mode is to enter a specific working area through the entire hybrid system to judge the current state. [0003] However, in the existing hybrid control system, there is no judgment on the driver's acceleration and deceleration demand intention, and it is impossible to accurately make the hybrid control system enter the working mode required by the driver, which may cause the system to enter the charging mode when it should not be charged. The charging mode seriously affects the r...

Claims

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Application Information

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IPC IPC(8): B60W20/00B60W10/06B60W10/08B60W20/10
CPCY02T10/6286Y02T10/62
Inventor 邓柯军严钦山苏岭李宗华
Owner 江西鼎盛新材料科技有限公司
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