Power switch control method of hybrid power transmission

Abstract

The invention provides a power switch control method of a hybrid power transmission. The method includes the steps that a gas storage device is operated to store compressed gases; a static start-up device is operated to output power to a clutch device through a gear device to drive the clutch device to rotate in advance; a clutch control mechanism is opened by a driver and switched to a output state, and at this time, the rotation speed of a driving part of the clutch mechanism is matched with the rotation speed of a follower of the clutch mechanism and the vehicle starting is not prone to stall; when a vehicle successfully starts, a start control mechanism is closed and a static start device is stopped to operate by the driver, and due to existence of an overrun clutch, the clutch devicecan not output the power reversely to the static start device through a rotatable shaft, and then the vehicle normally runs; and when the vehicle climbs the hill, the static start device and the clutch device can be started simultaneously by the driver to output the power to the gear device at the same time, and traction torque of the vehicle can be increased.

Description

technical field [0001] The invention relates to the field of automobile speed change, in particular to an automobile starting assisting method. Background technique [0002] With more and more attention paid to energy saving and environmental protection, automobile engines are developing towards supercharging and miniaturization. However, when the small displacement engine is running at low speed, the supercharger does not work at this time, and the output torque is relatively small, especially at idle speed. Under working conditions, this makes it more difficult for the vehicle to start. In addition, there are more and more trainee drivers. When driving a manual transmission vehicle, the accelerator and clutch do not cooperate well during the start process, or even do not step on the accelerator to start, causing the vehicle to start. The problem of easy flameout is also very common. In order to solve this problem in the prior art, the torque control strategy of the linear ...

AI Technical Summary

Problems solved by technology

[0002] With more and more attention paid to energy saving and environmental protection, automobile engines are developing towards supercharging and miniaturization. However, when the small displacement engine is running at low speed, the supercharger does not work at this time, and the output torque is relatively small, especially at idle speed. Under working conditions, this makes it more difficult for the vehicle to start. In addition, there are more and more trainee drivers. When driving a manual transmission vehicle, the accelerator and clutch do not cooperate well during the start process, or even do not step on the accelerator to start, causing the vehicle to start. The problem of easy flameout is also very common. In order to solve this problem in the prior art, the torque control strategy of the linear clutch position sensor is usually used to improve the starting performance, but this linear clutch sensor is very expensive and the cost is very high, and the The EMS controller needs to adopt a torque control structure, and the control strategy is very complicated. It needs to go through the high temperature, high cold, and plateau three-high calibration calibration start-up auxiliary strategy, so the development of vehicle calibration is very difficult, the development cycle is long, and the cost is high. Small The car has high requirements on cost and development cycle, so this method is obviously not used. In addition, the existing technology also uses a passive start compensation control method, but when the driver quickly steps on or releases the clutch pedal, the passive method is not compensated in time, and it is still very easy. Flame out, the problem of easy flameout at start cannot be solved from the attendant. Therefore, a hybrid transmission device is designed to assist the car to start. The auxiliary power system of this device is an air motor driven by high-pressure gas, which can pre-set In addition, when the vehicle climbs a slope, the two sets of power systems of the hybrid transmission device can be activated at the same time, which can increase the traction torque of the vehicle

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