Power generation control method for engine and driving motor of hybrid power bus

A drive motor and power generation control technology, applied in hybrid vehicles, motor vehicles, transportation and packaging, etc., can solve the problems of limited power and the recovered power cannot meet the power required for pure electric drive, and achieve energy storage power , The effect of improving the performance of pure electric drive

Active Publication Date: 2016-06-08
HUNAN CSR TIMES ELECTRIC VEHICLE
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  • Abstract
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Problems solved by technology

[0006] One of the purposes of the present invention is to solve the technical defect that the electric power recovered by the braking of the existin...

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  • Power generation control method for engine and driving motor of hybrid power bus
  • Power generation control method for engine and driving motor of hybrid power bus
  • Power generation control method for engine and driving motor of hybrid power bus

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Embodiment Construction

[0037] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0038] The embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention. And the features in the embodiments of the present invention can be combined with each other under the condition of no conflict.

[0039] figure 1 It is a structural schematic diagram of a power system of a hybrid electric passenger car according to an embodiment of the present invention. The power system mainly includes engine, ISG (Integrated Started Generator) motor, clutch, drive motor and battery. Wherein, the engine is connected with the ISG motor, and the ...

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Abstract

The invention discloses a power generation control method for an engine and a driving motor of a hybrid power bus. The power generation control method for the engine and the driving motor of the hybrid power bus comprises the following steps that the current speed and required traction torque of the bus are obtained; the required traction torque is determined to be within the range of the economical torque of the engine, and the difference value between the required traction torque and the economical torque of the engine is set to be the target value of the brake torque of the driving motor; the target value of the brake torque of the driving motor is adjusted, so that the absolute value of the brake toque of the motor is made to be larger than the minimum power generation torque of the motor and smaller than the maximum power generation torque of the motor; in the constrained time, the brake torque of the driving motor is changed to the numerical value of the brake torque of the motor from zero according to the quantization step, and the absolute value of the brake torque of the driving motor is set not to exceed the maximum torque which is allowed to be output at the current rotating speed of the driving motor; and the sum of the economical torque of the engine and the brake torque of the driving motor is used as the target torque of the engine.

Description

technical field [0001] The invention relates to the technical field of hybrid electric buses, in particular to a power generation control method for an engine and a driving motor of a parallel hybrid electric passenger car. Background technique [0002] According to the different drive structure types of hybrid electric vehicles, the common structure of the drive chain of the hybrid power system is divided into two types: "engine-clutch-drive motor" or "engine-ISG motor-clutch-drive motor". When the vehicle speed is low, the clutch is disengaged, and the vehicle is directly driven by the driving motor; when the vehicle speed is high, the clutch is engaged, and the engine and the motor work together to jointly drive the vehicle. [0003] Compared with traditional vehicles, hybrid electric buses add electric motors as drive units, which can realize pure electric starting. The motor provides energy to reduce the driving time of the engine and reduce the fuel consumption of the...

Claims

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Application Information

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IPC IPC(8): B60W10/06B60W10/08B60W10/26B60W10/02B60W20/10
CPCB60W10/02B60W10/06B60W10/08B60W10/26B60W20/10B60W2510/0638B60W2510/0657B60W2510/081B60W2710/0666B60W2710/083Y02T10/62
Inventor 蒋时军宋超谢勇波席力克罗锐杨杰君李熙文健峰熊刚
Owner HUNAN CSR TIMES ELECTRIC VEHICLE
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