Electric motor vehicle driving system
A drive system, electric vehicle technology, applied in the direction of multi-ratio transmission, transmission components, vehicle components, etc., can solve the problems of expensive equipment, high cost of drive system, complex control technology, etc.
Active Publication Date: 2008-06-25
BYD CO LTD
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Problems solved by technology
The structure of these drive motors is simple, but the control technology is complex and the equipment is expensive, which makes the cost of the drive system higher than other types
Method used
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Embodiment Construction
[0018] Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0019] According to one embodiment of the present invention, as figure 1 As shown, an electric vehicle drive system is provided, which includes a motor 3, a motor main shaft 11, an overrunning clutch 4, a low-speed gear set 5, a high-speed gear set 6, a power output shaft 7, a low-speed input shaft 9, a high-speed input shaft 10 and Ordinary clutch 12, wherein the power of the motor 3 is output through the motor main shaft 11, one end of the motor main shaft 11 is connected to the power output shaft 7 through the overrunning clutch 4, the low-speed input shaft 9 and the low-speed gear set 5 in sequence, and the other end is sequentially connected to the power output shaft 7 through the ordinary clutch 12 , the high-speed input shaft 10 and the high-speed gear set 6 are connected to the power output shaft 7 .
[0020] When the vehicle is running...
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The invention discloses a driving system of electric vehicles, which comprises a motor (3), a motor main shaft (11), an overrunning clutch (4), a low-speed gear group (5), a high-speed gear group (6), a power output shaft (7), a low-speed input shaft (9), a high-speed input shaft (10) and an ordinary clutch (12), among which, power of the motor (3) is outputted through the motor main shaft (11); one end of the motor main shaft (11) is connected with the power output shaft (7) through the overrunning clutch (4), the low-speed input shaft (9) and the high-speed gear group (5) in sequence; the other end of the motor main shaft (11) is connected with the power output shaft (7) through the ordinary clutch (12), the high-speed input shaft (10) and the high-speed gear group (6) in sequence. By controlling separation or conjugation of the ordinary clutch, the driving system can easily realize speed change of two gears of the electric vehicles and has a simple and compact structure. The driving system can allow the electric vehicles to keep power during high speed running and enhance endurance of the electric vehicles.
Description
technical field [0001] The invention relates to an electric vehicle driving system. Background technique [0002] With people's emphasis on environmental and energy issues, electric vehicles, as a pollution-free and green means of transportation, have received widespread international attention. my country has also included its development in the focus of the development of the automobile industry. Electric vehicles require the motor to have a small current when it is running stably, and it requires a large starting torque when it is running at full load. In terms of battery capacity, the specific power, specific torque and efficiency of the motor are required to be as high as possible. In order to achieve the best matching of vehicle performance, the power of the motor must also meet the dynamic performance of the vehicle, and meet the performance requirements such as maximum speed, climbing, and full-load acceleration. Electric motors in electric vehicles suffer from a ...
Claims
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IPC IPC(8): B60K17/00
CPCF16H2200/0021
Inventor 任毅王传福陈广全郭松岳秦丽军罗如忠罗红斌
Owner BYD CO LTD