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Hybrid drive systems and vehicles

A drive system, hybrid technology, applied in hybrid vehicles, motor vehicles, power units, etc., can solve the problem of high energy consumption

Active Publication Date: 2021-05-14
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, which can solve the problem of high energy consumption of the existing hybrid transmission based on planetary gear mechanism under high-speed working conditions with relatively low cost and structure

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

[0033] Such as figure 1 As shown, the hybrid drive system 100 provided by the first embodiment of the present invention includes an engine 1, a first motor 2, a second motor 3, a single-row planetary gear mechanism 4, a first shaft 5, an engine direct drive driving gear 6, The first clutch 7 , the second clutch 8 , the second shaft 9 , the third shaft 10 , the intermediate gear 11 , the third clutch 12 , the engine direct drive driven gear 13 , the main driving gear 14 and the main driving gear 15 .

[0034] The single row planetary gear mechanism 4 includes a sun gear 401 , a planet gear 402 , a planet carrier 403 and a ring gear 404 . The planetary gear 402 is externally meshed with the sun gear 401 , and the planetary gear 402 is internally meshed with the ring gear 404 , and the planetary gear 402 is rotatably supported on the planetary gear 403 by a pin shaft arranged on the planet carrier 403 Rack 403.

[0035] The main reduction and driven gears 15 are arranged on the...

no. 2 example

[0044] figure 2 Shown is the hybrid drive system 100 provided by the second embodiment of the present invention. The difference from the first embodiment is that the third clutch 12 is eliminated, and the intermediate gear 11 is directly connected to the driven gear 13 directly driven by the engine. Solid connection.

[0045] That is, in the second embodiment, the third clutch 12 only needs to control the engagement of the intermediate gear 11 . Compared with the first embodiment, the control is simpler and the response speed of the system is faster.

[0046] The hybrid drive system 100 provided in the above embodiment adopts multi-stage speed ratios, and by controlling the engagement state of each clutch, it can realize the pure electric drive of the motor, the serial extended range drive of the engine and the motor, the parallel drive of the engine and the motor, and the direct drive of the engine, etc. Operating mode. It enables the engine to work in the range with high...

no. 3 example

[0061] Additionally, if image 3 As shown, the third embodiment of the present invention also provides a vehicle 1000, which includes the hybrid drive system 100 of the above-mentioned embodiment.

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Abstract

The invention belongs to the technical field of hybrid power, and relates to a hybrid power drive system and a vehicle. The hybrid power drive system includes an engine, a first motor, a second motor, a first shaft, an engine direct drive driving gear, a first clutch, Clutches, second shafts, third shafts, engine direct drive driven gears, intermediate gears, main and driving gears, main and driven gears and single row planetary gear mechanisms. The hybrid drive system and vehicle of the present application adopt multi-stage speed ratios, and by controlling the engagement state of the two clutches, the working modes such as motor pure electric drive, hybrid drive and engine direct drive can be realized. It enables the engine to work in a range with higher fuel economy, so as to improve the fuel economy of the vehicle. The hybrid drive system can solve the problem of relatively high energy consumption of the existing hybrid transmission based on the planetary gear mechanism under high-speed working conditions with relatively low cost and structure.

Description

technical field [0001] The invention belongs to the technical field of hybrid power, and in particular relates to a hybrid power driving system and a vehicle. Background technique [0002] Hybrid systems can improve vehicle fuel economy in several ways. For example, the engine can be switched off during idling, deceleration or braking, driving in pure electric drive mode to eliminate efficiency losses due to engine drag. In addition, the energy stored in the power battery generated by regenerative braking or generated by the electric motor during engine operation can be utilized in pure electric drive mode, or supplement the engine's torque or power in hybrid drive mode. [0003] Hybrid vehicles can be driven by combining at least two different power sources. 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K6/24B60K6/26B60K6/36B60K6/365B60K6/38B60K17/16
CPCB60K6/24B60K6/26B60K6/36B60K6/365B60K6/38B60K17/16Y02T10/62
Inventor 朱新明穆金辉
Owner BYD CO LTD