Powertrain and vehicle having same
A power transmission system and vehicle technology, applied in the field of power transmission system, can solve the problems of insufficient power and passing capacity of the whole vehicle, low driving transmission efficiency, and few driving modes, so as to improve the passing ability and escape ability, and enrich the driving modes , the direct effect of power transmission
Active Publication Date: 2020-03-31
BYD CO LTD
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Problems solved by technology
[0003] However, in the relevant technologies known to the inventor, some hybrid electric vehicles have few driving modes and low drive transmission efficiency, which cannot meet the requirements of the vehicle to adapt to various road conditions, especially after the hybrid electric vehicle is fed (when the battery power is insufficient). Insufficient vehicle power and passing capacity
Moreover, in order to realize the parking power generation condition, it is necessary to additionally increase the transmission mechanism, which has low integration and low power generation efficiency
Method used
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no. 3 Embodiment
[0114] According to the third specific embodiment of the present invention, it is substantially the same as the first specific embodiment, and for specific differences, refer to the following content. like Figure 7-Figure 12 As shown, in the axial direction of the central axis of the planetary gear mechanism P, the switching device adapter S is located on one side of the planetary gear mechanism P. Specifically, such as Figure 7-Figure 9 As shown, the conversion device output part 4022 can be a shaft sleeve, one end of the shaft sleeve is fixed to the system power output part 401, the conversion device adapter S is arranged at the other end of the shaft sleeve, and the shaft sleeve is located on one side of the planetary gear mechanism P. The conversion device adapter S is located on the right side of the planetary gear mechanism P in the axial direction of the center axis of the planetary gear mechanism P. like Figure 10-Figure 12 As shown, the conversion device output ...
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The invention discloses a power transmission system and a vehicle with the same. The power transmission system includes a power source, a speed changer unit, a first motor generator unit, a second motor generator, a system power output part and a mode conversion device; the speed changer unit is selectively in dynamic coupled connection with the power source; the second motor generator is directlyand selectively in dynamic coupled connection with an engine; the mode conversion device comprises an input part and an output part, the input part outputs power from the power source and the first motor generator unit, the output part is connected with the system power output part, and the input part is selectively in dynamic coupled connection with the output part; when the input part is in dynamic coupled connection with the output part, the rotational speed of the input part is greater than or equal to that of the conversion device output part. In this way, the driving modes of the vehicle can be enriched, the vehicle can adapt to different road conditions, and the driving experience of drivers can be improved.
Description
technical field [0001] The present invention relates to the technical field of vehicles, in particular to a power transmission system of a vehicle and a vehicle with the power transmission system. Background technique [0002] With the continuous consumption of energy, the development and utilization of new energy vehicles has gradually become a trend. As one of the new energy vehicles, a hybrid vehicle is driven by an engine and / or an electric motor, and has multiple modes, which can improve transmission efficiency and fuel economy. [0003] However, in the related technologies known to the inventor, some hybrid electric vehicles have few drive modes and low drive transmission efficiency, which cannot meet the requirements of the vehicle to adapt to various road conditions, especially after the hybrid electric vehicle is powered (when the battery power is insufficient). The power and passing capacity of the whole vehicle are insufficient. Moreover, in order to realize the...
Claims
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IPC IPC(8): B60K6/44B60K6/547
CPCB60K6/44B60K6/547Y02T10/62
Inventor 凌和平翟震黄威徐友彬
Owner BYD CO LTD