Two-speed dual-mode powertrain for new energy vehicles
A new energy vehicle and powertrain technology, which is applied in the arrangement of multiple different prime movers of power units, general power units, and pneumatic power units, etc., can solve the problem of insufficient power, difficulty, and poor engine performance. Give full play to other issues to achieve the effect of helping flexibility and improving electrical efficiency
Active Publication Date: 2019-03-19
福建中传科技有限公司
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Problems solved by technology
At the same time, it also exposed the most problems, ranging from early belt problems, electromagnetic clutch problems, dry automatic clutches, air pumps, and broken shafts of motors to insufficient power, high system costs, and insufficient engine performance. In the process of further improvement, the bottleneck problem that is difficult to solve is encountered
[0004] At present, the entire industry is striving towards independent driving of gasoline and electricity, regular control, power replenishment in high-efficiency areas, good recycling efficiency, simple control, high reliability, stable performance, low cost, good power, high fuel saving rate, and comfort. However, in order to achieve the above goals, it is necessary to have the engine alone to drive the minimum four-speed automatic transmission, automatic clutch with sustainable friction, at least two-speed automatic transmission to assist the motor drive, and the motor speed to increase without changing the power, etc. conditions, it is more difficult to realize
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[0027] In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail with reference to the accompanying drawings, but the present invention is not limited thereto.
[0028] Referring to Figure 1, the two-speed dual-mode powertrain for new energy vehicles of the present invention includes an engine 1, a battery pack or capacitor pack 2, a motor 3, and a rear axle assembly. The output power of the engine 1 is connected to the rear axle through a connector 4. The second two-speed clutch 5 is connected, and the output power of the engine 1 is coupled with the output power of the motor 3 after being decelerated and increased by the rear two two-speed clutch 5, and is connected to the rear through the front two-speed automatic transmission 6, the transmission shaft 7 and the rear two-speed clutch 5. The bridge assembly is connected, and the battery pack or capacitor pack 2 is conne...
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The invention discloses a double-speed dual-mode power assembly for a new energy automobile. The double-speed dual-mode power assembly comprises an engine, a battery pack or a capacitor pack, a motor and a rear axle assembly. The engine output power is connected with a rear second double-speed clutch through a connector, coupled to the output power of the motor after being subjected to speed reduction and torsional increase through the rear second double-speed clutch and connected with the rear axle assembly through a front second two-gear automatic gearbox and a transmission shaft. The battery pack or the capacitor pack is connected with the motor through an inverter for providing motor drive electricity for the motor. The double-power drive assembly is simple to control, steady in oil electricity switching, good in comfort, economical in fuel, efficient in transmission and low in impact, emission is reduced, and people can feel more comfortable.
Description
technical field [0001] The invention relates to the field of new energy vehicles, in particular to a two-speed dual-mode power assembly for new energy vehicles. Background technique [0002] With the continuous advancement of the new energy bus industry, higher requirements are put forward for the system's fuel saving rate, power saving rate, reliability, stability, power, comfort, and cost. Played an extremely important role in promoting, however, has been difficult to adapt to today's development trend. [0003] The mainstream hybrid structure of the current dual power drive assembly includes engine + traditional dry-type reformed automatic clutch + 65Kw asynchronous drive motor + belt generator (BSG) solution, engine + elastic shock absorber + generator + automatic clutch + 70Kw asynchronous drive Motor (ISG) scheme, engine + automatic clutch + two-speed shift fork automatic transmission + 65Kw asynchronous drive motor scheme, engine + automatic clutch + permanent magnet...
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IPC IPC(8): B60K6/42B60K6/50
Inventor 曾洁
Owner 福建中传科技有限公司