The structure used to improve the idling noise of isg hybrid car

A technology for hybrid cars and cars, which is applied in the field of improving the structure of ISG hybrid car idling rattling noises. It can solve the problems of long optimization period, high cost, and difficult technical research, so as to reduce the rattling noise of splines. loud effect

Active Publication Date: 2018-04-03
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned optimization schemes all have the characteristics of long optimization period, many rectification parts, high cost, and difficult technical research.

Method used

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  • The structure used to improve the idling noise of isg hybrid car
  • The structure used to improve the idling noise of isg hybrid car
  • The structure used to improve the idling noise of isg hybrid car

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Embodiment Construction

[0016] In order to further explain the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings.

[0017] See Figure 1 to Figure 6 As shown, the structure used to improve the abnormal noise of ISG hybrid car at idle speed includes dual mass flywheel 8, ISG motor assembly and CVT transmission input shaft 9, ISG motor assembly includes ISG motor rotor assembly 6 and ISG motor stator Assembly 7. The dual mass flywheel 8 is provided with a first inner spline 10, and the ISG motor rotor assembly 6 is provided with an outer spline matching the first inner spline 10. The dual mass flywheel 8 passes through the first inner spline 10 and the outer spline. The spline is connected with the ISG motor rotor assembly 6 key, and the ISG motor rotor assembly 6 is also provided with a second internal spline 11, the CVT transmission is connected with the ISG motor rotor assembly 6 key through the CVT transmis...

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Abstract

The invention discloses a structure for improving idling knocking abnormal sound of an ISG hybrid power car. The structure comprises a dual mass flywheel, an ISG motor rotor assembly and a CVT input shaft. The dual mass flywheel, the ISG motor rotor assembly and the CVT input shaft are connected in series through two pairs of spline structures to transmit power of an engine to a CVT. Diaphragm springs are arranged between the dual mass flywheel and the ISG motor rotor assembly, one ends of the diaphragm springs are welded to an ISG motor rotor end face, the middles of the diaphragm springs abut against a dual mass flywheel end face and can slide relative to the dual mass flywheel, and the other ends of the diaphragm springs abut against the ISG motor rotor end face. The structure can lower the knocking abnormal sound of idling splines on the premise of not affecting other properties.

Description

Technical field [0001] The present invention relates to the structure of automobile parts, and more specifically to a structure for improving the abnormal sound of an ISG hybrid car during idling. Background technique [0002] Hybrid electric vehicles have shown great advantages in energy saving and emission reduction, and have become a current research hotspot. For hybrid cars, they have different noise performance compared to traditional vehicles. Therefore, NVH performance has become a key factor in whether hybrid cars can sell well in the market. The performance of the idling NVH directly affects the overall quality of the car. ISG hybrid cars have a variety of idling conditions, and various idling conditions have special noise and vibration problems. Due to the particularity of the powertrain structure of the ISG hybrid car (two-mass flywheel, ISG motor, and CVT transmission are connected in series through two pairs of splines) the powertrain adopts a two-stage spline conne...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K6/30B60K6/36B60K6/40H02K7/02
CPCY02E60/16Y02T10/62
Inventor 晏国强易春元李传兵叶宏璐靳红英王兰军张红军李敏
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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