Commercial Vehicle Parallel Hybrid Multi-speed Transmission

Abstract

The invention belongs to the technical field of hybrid-power commercial vehicles, and particularly relates to a multi-gear gearbox. According to the technical scheme of a parallel-type hybrid-power multi-gear gearbox of a commercial vehicle, the power of an engine is input to an engine input shaft after passing through a clutch; a motor module comprises a motor and a drive gear, and the power of the motor is output through the drive gear and a motor input shaft; a gearbox primary box module consists of a multi-degree-of-freedom stationary-shaft gear mechanism, can be used for coupling the power of the engine and the motor, and can be used for realizing the gears of five matched engines and the gears of two matched motors; a gearbox auxiliary box module can be used for realizing two gears of a high gear and a lower gear, and can be used for realizing the gears of ten matched engines and the gears of four matched motors when jointly working with the gearbox primary box input module; the parallel-type hybrid-power multi-gear gearbox of the commercial vehicle is characterized in that the power of the motor and the engine is coupled by adopting the multi-degree-of-freedom gear mechanism, and the functions of hybrid power and power gear shifting are realized.

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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