Transmission system used for electric vehicle
A technology for transmission systems and electric vehicles, applied in transmission devices, vehicle components, control devices, etc., can solve problems such as the inability of fixed speed ratio reducers to give full play to the motor performance, the large number of gears of dual clutch transmissions, and the complex structure, etc. Simple structure, easy driving and high comfort
Inactive Publication Date: 2014-09-24
JIANGLING MOTORS
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Problems solved by technology
At present, there are deficiencies in the transmissions of the electric vehicle transmission system, such as the fixed speed ratio reducer cannot give full play to the performance of the motor; manual transmission and mechanical automatic transmission produce power interruption when shifting gears; dual-clutch transmission has many gears and complex structure
Method used
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[0009] Example: see figure 1 .
[0010] A transmission system for an electric vehicle includes a two-speed automatic transmission, a differential and a half shaft. The two-speed automatic transmission includes an input shaft 1 , a low-speed gear pair and a high-speed gear pair, as well as a low-speed electromagnetic clutch 3 and a high-speed electromagnetic clutch 2 . The low-speed gear pair is composed of a driving gear 6 and a driven gear 7, and is used to transmit the power shifting torque of the input shaft 1 to the differential 8; the high-speed gear pair is composed of a driving gear 4 and a driven gear 5, It is used to transmit the power shifting torque of the input shaft 1 to the differential 8 . The low gear electromagnetic clutch 3 and the high gear electromagnetic clutch 2 are placed on the same input shaft, the low gear electromagnetic clutch 3 is composed of a driving disc and a driven disc, the driving disc is connected with the input shaft 1, and the driven di...
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The invention relates to the field of electric vehicle power transmission, in particular to a transmission system used for an electric vehicle. The transmission system used for the electric vehicle comprises a transmission, a differential mechanism and a half axle, wherein the transmission comprises an input shaft, a low-gear gear pair, a high-gear gear pair, a low-gear electromagnetic clutch and a high-gear electromagnetic clutch; the driven gear of the low-gear electromagnetic clutch and the driven gear of the high-gear electromagnetic clutch are respectively fixedly arranged on two ends of the shell of the differential mechanism along the circumference; the low-gear gear pair and the high-gear gear pair are used for transferring the power of the input shaft to the differential mechanism in a speed change and bending moment mode; the differential mechanism and the half axle are used for causing the power transferred by a low-gear driven gear and a high-gear driven gear to be differential; the power is output by the half axle. The transmission system used for the electric vehicle, which is disclosed by the invention, has the advantages of simple, compact and flexible structure, easiness in driving and high comfort level, is suitable for both front-wheel drive and rear-wheel drive, and is favorable for interval vehicle arrangement. The two-gear transmission is adopted, a motor can be caused to work in a high-efficiency area, the service life of the motor is prolonged, the power performance of the vehicle is improved, driving ranges are increased, and speed change is free from power failure.
Description
technical field [0001] The invention relates to the field of power transmission of electric vehicles, in particular to a transmission system for electric vehicles. Background technique [0002] Environmental pollution and resource shortage will limit the long-term development of traditional internal combustion engine vehicles. Electric vehicles, powered by renewable and clean electric energy, can effectively solve the problems of environmental pollution and resource shortage. The motor has a wide working range, which can reduce the gears of the transmission, and the characteristics of constant torque at low speed and constant power at high speed are more suitable for the running needs of the car. With the rapid development of power battery technology, motor and its controller technology, and automotive electronics technology, electric vehicles will have a lot of room for development in the future. As an important part of the electric vehicle, the transmission system's struc...
Claims
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IPC IPC(8): F16H37/08B60K17/16
CPCF16H37/0813B60K17/165F16H2200/0034F16H2200/0021
Inventor 徐仕华刘森海邓建明
Owner JIANGLING MOTORS