Rattling Noise Reduction Technology for Multi Stage Hybrid Transmission TOYOTA MOTOR CORPORATION

Format:

Conference/Event

Author/Creator:

Tateno, Tateno, author.

Contributor:

Adachi, Masatoshi

Furukawa, Tomoaki

Hayashi, Kōji

Nagata, Shohei

Suzuki, Haruhisa

Yasuda, Yuji

Conference Name:

WCX 17: SAE World Congress Experience (2017-04-04 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2017

Summary:

AbstractToyota Motor Corporation developed the Multi Stage Hybrid System for the Lexus flagship LC500h coupe with the aim of achieving an excellent balance between fuel economy and acceleration performance. The Multi Stage Hybrid Transmission used in this new hybrid system includes a shift device located immediately the power split device and motor.Compared with existing hybrid systems, acceleration performance is improved by increasing the driving force at low and medium vehicle speeds in lower gears, fuel economy and heat management performance are improved by reducing electrical loss by selecting the optimal gear depending on the driving state. The Multi Stage Transmission uses a shift device with a wide gear ratio range to maximize both fuel economy and acceleration performance.The transmission was designed to achieve the appropriate size to be mounted in a new platform, as well as class-leading low noise levels for adoption in luxury vehicles. This is a key development item for Lexus vehicles which must meet high customer expectations in terms of silence characteristics, specifically in hybrid transmissions, due to the various components with backlash, which can lead to various rattling noises.This paper describes the technology developed to reduce rattling noise in the Multi Stage Hybrid Transmission

Notes:

Vendor supplied data

Publisher Number:

2017-01-1157

Access Restriction:

Restricted for use by site license