Shifting mechanism, gearbox assembly, electric vehicle, shifting method and control system
A shifting mechanism and technology for electric vehicles, which are applied to shifting methods and control systems, shifting mechanisms, gearbox assemblies, and electric vehicle fields, can solve the problem of reduced electric drive efficiency, reduced driving range, and poor climbing ability. and other problems to achieve the effect of improving battery energy utilization, extending cruising range and saving battery energy
Inactive Publication Date: 2020-07-03
重庆瑞阳鑫驰新能源汽车有限责任公司
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Problems solved by technology
However, the above-mentioned control method has great shortcomings. Because the reduction ratio is fixed, the working efficiency and torque of the motor in each speed range cannot be guaranteed. When the electric vehicle is climbing or loaded, the electric vehicle needs to continuously increase the current to meet the actual demand. This not only wastes precious battery energy, but also reduces the efficiency of electric drive, and also increases the requirements for traction motors. The intuitive consequence is that the vehicle's climbing ability is not strong, and the driving range is reduced.
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[0078] The object of the present invention is to provide a gear shift mechanism, a gearbox assembly, an electric vehicle, a gear shift method and a control system, so as to improve the battery energy utilization rate of the electric vehicle in all working conditions.
[0079] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0080] see Figure 1-Figure 4 , The shift mechanism provided by the embodiment of the present invention includes a housing 2, a transmission shaft 1, a first transmission gear a2, a first one-wa...
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The invention discloses a gear shift mechanism, a transmission assembly, an electric automobile, a gear shift method and a control system. The gear shift mechanism comprises a shell, a transmission shaft arranged on the shell, a first transmission gear, a first isolator body and a control assembly, wherein the transmission shaft is sleeved with the first transmission gear, the first transmission gear is divided into a first section and a second section in the axial direction, the first section of the first transmission gear is rotationally connected with the transmission shaft, the transmission shaft is fixedly sleeved with the first isolator body, the first isolator body is located between the second section of the first transmission gear and the transmission shaft, and the control assembly can achieve combination and separation of the first isolator body and the first transmission gear. The battery energy utilization rate in the full working condition zone of the electric automobilecan be improved through the gear shift mechanism.
Description
technical field [0001] The invention relates to the technical field of vehicle manufacturing, and more specifically relates to a gear shift mechanism, a gearbox assembly, an electric vehicle, a gear shift method and a control system. Background technique [0002] The transmission mechanism of electric vehicles currently produced on the market is a unipolar fixed-speed ratio transmission, which relies on an electronic controller to regulate the speed of the motor to achieve the purpose of stepless transmission. It can go from zero to the rated speed. However, the above-mentioned control method has great shortcomings. Because the reduction ratio is fixed, the working efficiency and torque of the motor in each speed range cannot be guaranteed. When the electric vehicle is climbing or under load, the electric vehicle needs to continuously increase the current to meet the actual demand. This not only wastes precious battery energy, but also reduces the efficiency of electric driv...
Claims
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IPC IPC(8): F16H3/10F16H59/42F16H59/50F16H59/24F16H61/02F16H63/30F16D41/064
CPCF16D41/064F16H3/10F16H59/24F16H59/42F16H59/50F16H61/0213F16H63/3043F16H2200/0021
Inventor 徐仕武高庆何为韦文军
Owner 重庆瑞阳鑫驰新能源汽车有限责任公司