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Hybrid drive systems and vehicles

A drive system and hybrid technology, applied in hybrid vehicles, motor vehicles, power plants, etc., can solve the problems of shifting shock and frustration, and achieve the effect of alleviating the shock feeling, simple and compact structure, and improving the carrying capacity

Active Publication Date: 2022-01-07
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a hybrid drive system and vehicle

Method used

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  • Hybrid drive systems and vehicles
  • Hybrid drive systems and vehicles
  • Hybrid drive systems and vehicles

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0077] like figure 1 As shown, the hybrid drive system provided by the first embodiment of the present invention includes an engine 1, a first motor 2, a second motor 3, a connection and disconnection unit 4 and a transmission. The first motor 2 is the same as the engine 1. Shaft arrangement, the second electric machine 3 is arranged side by side with the engine 1 . The restriction on the mating surface of the second motor 3 and the engine 1 is eliminated, and the outer diameter of the second motor 3 can be increased. Since the first motor 2 and the engine 1 are arranged coaxially, the structure of the side surface can be reduced, and the mountability can be improved.

[0078] The transmission includes a first shaft 5 , a second shaft 6 , a third shaft 7 , a first synchronizer S1 , a second synchronizer S2 , a first motor first gear drive gear 8 , and a first motor second gear drive. Gear 9, second motor first gear driving gear 10, second motor second gear driving gear 11, f...

no. 2 example

[0135] like figure 2 As shown, the hybrid drive system provided by the second embodiment of the present invention includes an engine 1, a first motor 2, a second motor 3, a connection and disconnection unit 4 and a transmission. The first motor 2 is the same as the engine 1. Shaft arrangement, the second electric machine 3 is arranged side by side with the engine 1 . The restriction on the mating surface of the second motor 3 and the engine 1 is eliminated, and the outer diameter of the second motor 3 can be increased. Since the first motor 2 and the engine 1 are arranged coaxially, the structure of the side surface can be reduced, and the mountability can be improved.

[0136] The transmission includes a first shaft 5 , a second shaft 6 , a third shaft 7 , a first synchronizer S1 , a second synchronizer S2 , a first motor first gear drive gear 8 , and a first motor second gear drive. Gear 9, second motor first gear driving gear 10, second motor second gear driving gear 11,...

no. 3 example

[0146] like image 3 As shown, the hybrid drive system provided by the third embodiment of the present invention includes an engine 1, a first motor 2, a second motor 3, a connection and disconnection unit 4 and a transmission. The first motor 2 is the same as the engine 1. Shaft arrangement, the second electric machine 3 is arranged side by side with the engine 1 . The restriction on the mating surface of the second motor 3 and the engine 1 is eliminated, and the outer diameter of the second motor 3 can be increased. Since the first motor 2 and the engine 1 are arranged coaxially, the structure of the side surface can be reduced, and the mountability can be improved.

[0147] The transmission includes a first shaft 5 , a second shaft 6 , a third shaft 7 , a first synchronizer S1 , a second synchronizer S2 , a first motor first gear drive gear 8 , and a first motor second gear drive. Gear 9, second motor first gear driving gear 10, second motor second gear driving gear 11, f...

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Abstract

The invention belongs to the technical field of hybrid power, and relates to a hybrid drive system and a vehicle. The hybrid drive system includes an engine, a first motor, a second motor, a connection and disconnection unit, and a transmission. The first motor and the engine Arranged coaxially, the second motor is arranged side by side with the engine; the transmission includes a first shaft, a second shaft, a third shaft, a first synchronizer, a second synchronizer, the driving gear of the first gear of the first motor, The driving gear of the 2nd gear of the first motor, the driving gear of the 1st gear of the second motor, the driving gear of the 2nd gear of the second motor, the driven gear of the 1st gear, the driven gear of the 2nd gear, the main minus driving gear And main and driven gears. In the hybrid drive system and the vehicle of the present invention, when the system changes gears, the rotational speed of the first motor or the second motor is controlled to be close to the same as the rotational speed of the target gear gear, and then the first synchronizer or the second synchronizer Engages with the target gear to relieve the shock feeling during the shifting process.

Description

technical field [0001] The invention belongs to the technical field of hybrid power, and in particular relates to a hybrid power drive system and a vehicle. Background technique [0002] Hybrid powertrains can improve vehicle fuel economy in a number of ways. For example, the engine can be shut down during idling, deceleration or braking to drive in an electric-only drive mode to eliminate efficiency losses due to engine drag. In addition, energy generated by regenerative braking or stored in the power battery by the electric machine during engine operation can be utilized in pure electric drive mode, or supplemented with engine torque or power in hybrid drive mode. [0003] Hybrid vehicles can be driven by combining at least two different types of power. At present, most hybrid vehicles use a gasoline-electric hybrid system, which includes an engine powered by fuel and an electric motor driven by electricity. In order to improve the combustion efficiency of the engine to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K6/24B60K6/26B60K6/36B60K6/38B60K6/547
CPCB60K6/24B60K6/26B60K6/36B60K6/38B60K6/547Y02T10/62
Inventor 廉玉波凌和平翟震梅绍坤熊雨超
Owner BYD CO LTD
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