Multi-mode dual-motor drive system and its drive mode

Abstract

The invention discloses a multimode dual-motor driving system and a driving mode thereof. The multimode dual-motor driving system is characterized in that an output shaft of a first motor is connected with a first input shaft of a speed changing box; an output shaft of a second motor is connected with a second input shaft of the speed changing box; the first input shaft of the speed changing box is connected with the second input shaft of the speed changing box by a clutch; the speed changing box is internally provided with four gear structures; a first-gear gear set and a third-gear gear set are arranged on the second input shaft of the speed changing box; a second-gear gear set and a fourth-gear gear set are arranged on the first input shaft of the speed changing box; an odd-gear synchronizer is arranged between the first-gear gear set and the third-gear gear set; and an even-gear synchronizer is arranged between the second-gear gear set and the fourth-gear gear set. The invention has the advantages that by the mode, multimode gear shifting can be realized, and the implementation is easy; by combined control with driving of two motors, the optimized combination of the power performance and the economic performance can be realized; and gear shifting is realized by switching control of two motors, no power failure occurs and the comfort is good.

Description

technical field

[0001] The invention relates to the field of power drive, in particular to a multi-mode dual-motor drive system and its drive method. Background technique

[0002] With the increasingly serious problems of energy shortage and environmental pollution, electric vehicles are generally considered to be the direction of the development of the automobile industry at home and abroad. Their large-scale promotion and application can not only save energy and reduce emissions, but also improve people's quality of life. It is an important measure to solve the problem of over-reliance on oil and solve the national energy security.

[0003] The existing pure electric electric drive system scheme is divided into two types according to the speed change scheme. One is the drive system using a single-stage reduction gear, without a gearbox, and a single-stage reduction gear is used to achieve deceleration. Step speed regulation, but because there is no speed change function, ...

Examples

Embodiment Construction

[0017] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0018] see figure 1 ,

[0019] A multi-mode dual-motor drive system of the present invention includes: a first motor 1, a second motor 2, a gearbox, the output shaft of the first motor is connected with the first input shaft 3 of the gearbox, and the second The output shaft of the motor is connected with the second input shaft 4 of the gearbox, and the first input shaft 3 of the gearbox is connected with the second input shaft 4 of the gearbox through an electronically controlled clutch.

[0020] There are 4 gears in the gearbox, which are 1st gear, 2nd gear, 3rd gear and 4th gear. The 1st gear and the 3rd gear are located on the first On the s...

technical field

[0001] The invention relates to the field of power drive, in particular to a multi-mode dual-motor drive system and its drive method. Background technique

[0002] With the increasingly serious problems of energy shortage and environmental pollution, electric vehicles are generally considered to be the direction of the development of the automobile industry at home and abroad. Their large-scale promotion and application can not only save energy and reduce emissions, but also improve people's quality of life. It is an important measure to solve the problem of over-reliance on oil and solve the national energy security.

[0003] The existing pure electric electric drive system scheme is divided into two types according to the speed change scheme. One is the drive system using a single-stage reduction gear, without a gearbox, and a single-stage reduction gear is used to achieve deceleration. Step speed regulation, but because there is no speed change function, ...

Examples

Embodiment Construction

[0017] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0018] see figure 1 ,

[0019] A multi-mode dual-motor drive system of the present invention includes: a first motor 1, a second motor 2, a gearbox, the output shaft of the first motor is connected with the first input shaft 3 of the gearbox, and the second The output shaft of the motor is connected with the second input shaft 4 of the gearbox, and the first input shaft 3 of the gearbox is connected with the second input shaft 4 of the gearbox through an electronically controlled clutch.

[0020] There are 4 gears in the gearbox, which are 1st gear, 2nd gear, 3rd gear and 4th gear. The 1st gear and the 3rd gear are located on the first On the s...

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