Driving device of hybrid electric vehicle and control method thereof

Abstract

The invention provides a driving device of a hybrid electric vehicle and a control method thereof, which comprises an engine, a single clutch, an electronic pump and a single clutch hydraulic controlmodule, a motor integrated with the single clutch, and a double clutch drive system. The single clutch external tooth hub is connected with the engine output shaft, the electronic pump, the single clutch hydraulic control module and the single clutch external tooth hub are connected in turn through the oil circuit, and pressure oil of the electronic pump is allocated to the oil passage of the single clutch through the single clutch hydraulic control module. The input shaft of the motor and the inner teeth of the single clutch are connected. The double clutch drive system is connected with theoutput shaft of the motor. The driving device of the hybrid electric vehicle and the control method thereof realizes fast start of the engine by independent control of the single clutch, and optimizesthe control strategy in the process of torque coupling and decoupling. It makes the engine and motor power switch and intervene avoid impact and power interruption, thereby optimizing the driving performance.

Description

technical field [0001] The invention relates to a power system of a vehicle, in particular to a driving device and a control method for a hybrid vehicle. Background technique [0002] A hybrid vehicle is a vehicle that uses more than two sources of energy. The most common gasoline-electric hybrid vehicle is a hybrid output with two kinds of power provided by the engine and the motor, in which the engine consumes fuel and the motor consumes power from the power battery. [0003] In the field of vehicle automatic transmissions, dual-clutch automatic transmissions are well-known for their shifting characteristics positioned in sports performance. Due to the design of the dual-clutch automatic transmission has good gear meshing efficiency and flexible selection of the transmission ratio, it has good fuel economy; at the same time, the dual-clutch automatic transmission can greatly reduce the power interruption during the shifting process, and the driving comfort is superior. T...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a driving device for a hybrid vehicle in view of the fact that the existing single-motor parallel hybrid system cannot realize the rapid start function of the engine, and there is an impact when the engine and the motor power are switched and intervened.

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