Power driving system and vehicle with same

A technology of power drive and power source, applied in the field of power drive system and vehicles with the power drive system, can solve the problem that pure electric and hybrid parking power generation cannot be realized, and achieve the effect of enriching transmission modes
CN106915236AInactive Publication Date: 2017-07-04BYD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BYD CO LTD
Publication Date
2017-07-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a power driving system. The power driving system comprises a power coupling device, a power source, a first electric power generator, a second electric power generator and a first brake device, wherein the power coupling device comprises a first sun gear, a first planet carrier, a first gear ring, a second sun gear, a second planet carrier and a second gear ring, wherein the first gear ring is coaxially connected with the second gear ring; the power source is arranged to be selectively linked with the first gear ring and the second gear ring; the first electric power generator is linked with the first sun gear; the second electric power generator is linked with second sun gear; and the first brake device is used for directly or indirectly braking the first gear ring and the second gear ring. The power driving system has the advantages that a differential function is realized on the premise of eliminating the traditional mechanical differential mechanism and rich transmission modes are also realized.
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Description

technical field

[0001] The invention relates to the technical field of automobiles, in particular to a power drive system and a vehicle with the power drive system. Background technique

[0002] In a related technology known to the inventor about a transmission device for a vehicle, the transmission device is provided with a pair of differential mechanisms and a pair of motors, and the differential mechanism has a sun gear, a planetary gear, a planetary carrier and an inner ring gear. The engine is input to the sun gears of a pair of differential mechanisms after being shifted by the intermediate transmission structure. The pair of motors respectively input driving forces to the ring gears of the pair of differential mechanisms. The transmission device cancels the traditional mechanical differential element, and uses two sets of planetary gear mechanisms to realize the power coupling of the two motors and the engine.

[0003] However, the above-mentioned transmission devic...

Claims

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