Integrated power assembly for pure electric vehicle
A powertrain and pure electric vehicle technology, applied in the direction of electric vehicles, electric components, motors, etc., can solve problems such as the difficulty in arranging motor multi-speed transmission systems, increasing the difficulty of vehicle control, and reducing the economical efficiency of motor operation. , to achieve the effect of compact structure, convenient layout and extended driving range
Pending Publication Date: 2017-07-07
NANJING YUEBOO POWER SYST CO LTD
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AI Technical Summary
Problems solved by technology
The single speed ratio transmission device and the drive system without a transmission device not only increase the difficulty of vehicle control, but also reduce the economical efficiency of the motor operation and reduce the mileage of the vehicle.
On the other hand, due to the limited interior space of small passenger cars, it is difficult to arrange the existing motor plus multi-speed transmission system solution
Method used
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Embodiment 1
[0038] The assembly, such as figure 1 As shown, including motor 3 and speed changer;
[0039] The motor 3 is connected with the vehicle controller (not shown in the figure);
[0040] Described speed changer comprises gearbox 5, is provided with input shaft 4 in described gearbox 5, and the main shaft of described motor 3 is connected with described input shaft 4, on described input shaft 4, relative to described input shaft 4. A high-grade driving gear 6 and a low-gear driving gear 9 are arranged to be relatively rotatable, and the input shaft 4 is fixedly connected with a combination sleeve 7 arranged between the high-grade driving gear 6 and the low-gear driving gear 9. The combination sleeve 7 is connected to the shift actuator 8 fixed to the gearbox 5, and the shift actuator 8 is connected to the vehicle controller;
[0041] Also be provided with intermediate shaft 11 in described gearbox 5, on described intermediate shaft 11, be fixedly connected with the high-grade dri...
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The invention belongs to the technical field of electric vehicle transmission, and relates to an integrated power assembly for a pure electric vehicle. The integrated power assembly comprises a motor and a transmission, the transmission comprises a high-grade power transmission gear train and a low-grade power transmission gear train, and gear shifting of the high-grade speed and the low-grade speed is realized through adjustment and combination of a shift actuator connected with a vehicle controller. The integrated power assembly for the pure electric vehicle has the beneficial effects that the motor and the transmission are integrated into a whole, two speed shifting units, a main speed decelerating unit, a differential mechanism and the shift actuator are integrated in a transmission body, the structure is compact, the size is small, and arrangement is convenient; and two gears are shifted freely through the shift actuator, rideability requirements of a vehicle in different road conditions are met, long-term operation of the motor in an efficient area is ensured, economical efficiency is improved, and the vehicle driving range is extended.
Description
technical field [0001] The invention belongs to the technical field of electric vehicle transmission, and relates to an integrated power assembly for pure electric vehicles. Background technique [0002] Because of its zero-emission characteristics, pure electric vehicles adapt to the general trend of energy-saving and environmental protection, and have an absolute advantage in the promotion of large and medium-sized cities. [0003] At present, most of the loading schemes for commercial vehicles and large and medium-sized passenger cars on the market are multi-speed transmission systems with drive motors, while small passenger cars mostly use drive motors plus single reduction ratio systems or direct drive motor systems. For example, the Chinese invention patent with the application number CN201210089868.4 discloses a power assembly for an electric vehicle, including a gearbox case, and a differential case is connected to the gearbox case through a first bearing. A differe...
Claims
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IPC IPC(8): B60K17/16B60K17/08H02K7/116
CPCH02K7/116B60K17/08B60K17/165Y02T10/64
Inventor 李占江高超李艳会胡春红
Owner NANJING YUEBOO POWER SYST CO LTD