Parallel type hybrid power multi-gear transmission case for power gear-shifting of commercial vehicle

Abstract

The invention belongs to the technical field of commercial hybrid power vehicles and relates to a multi-gear transmission case, in particular to a parallel type hybrid power multi-gear transmission case for power gear-shifting of a commercial vehicle. According to the technical scheme, the power of an engine is input to an engine input shaft after passing through a clutch; a motor module comprises an electromotor and a transmission gear, and the motor power is output through the transmission gear and an electromotor input shaft; a main box module of the transmission case is composed of a multi-degree of freedom fixed-axle gear mechanism, can be coupled with the power of the engine and a motor, and can realize the gears of five matched engines and the gears of two matched motors; an auxiliary box module of the transmission case can realize a high gear and a low gear; the auxiliary box module of the transmission case collaborates with the main box input module of the transmission case, so that the gears of ten matched engines and the gears of four matched motors can be realized. The parallel type hybrid power multi-gear transmission case has the characteristics that the multi-degree of freedom gear mechanism is adopted to couple the power of the engine and the motor and realizes the hybrid power and power gear-shifting functions.

Description

technical field [0001] The invention belongs to the technical field of commercial hybrid vehicles, in particular to a multi-speed gearbox. Background technique [0002] Hybrid technology has the advantages of reducing emissions and fuel consumption while improving vehicle dynamic performance. In the parallel hybrid technology, the motor mainly realizes the power assist under the rapid acceleration condition or the low-speed condition of the engine to improve the power performance and the fuel economy of the engine; The starting condition can realize the pure electric driving condition; according to the position of the motor, the parallel hybrid can be divided into three types: the first one is that the motor is arranged in front of the clutch of the gearbox, and its characteristic is that the motor can use the gearbox The transmission ratio adjusts the transmission range, the motor's own speed and torque performance requirements are low, but there is power interruption duri...

AI Technical Summary

Problems solved by technology

In the parallel hybrid technology, the motor mainly realizes the power assist under the rapid acceleration condition or the low-speed condition of the engine to improve the power performance and the fuel economy of the engine; The starting condition can realize the pure electric driving condition; according to the position of the motor, the parallel hybrid can be divided into three types: the first one is that the motor is arranged in front of the clutch of the gearbox, and its characteristic is that the motor can use the gearbox The transmission ratio adjusts the transmission range, the motor's own speed and torque performance requirements are low, but there is power interruption during the gear shifting process, and the inertia that needs to be synchronized is large; the second type is that the motor is arranged behind the output shaft of the gearbox, which is characterized by shifting There is no power interruption during the process, but the motor speed and torque performance requirements are high; the third is that the motor is arranged on the intermediate shaft of the gearbox, which is characterized by the use of a multi-degree-of-freedom gear mechanism to couple the power of the motor and the engine to achieve hybrid and Power shifting function; traditional manual gearboxes have power interruptions during the shifting process, which affects the power of the car. The transmissions in the patent documents CN100570174C and CN101782146B realize the power shifting design through mechanical mechanisms, but during the shifting process, mechanical Mechanisms cooperate with each other, and it is difficult to realize the hybrid function

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