Four-wheel vehicle drive system

Sasaki, K; Takimura, K; Katayama, N; Tsuchiya, F

Title: Four-wheel vehicle drive system

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Abstract

A four-wheel drive system is described for use in a vehicle including a first and second pair of road wheels, a power unit including an output shaft, and a power transmission gear unit including input and output shafts. The input shaft of the power transmission gear unit is selectively connected to the output shaft of the power unit. The output shaft of the power transmission gear unit selectively is in driving engagement with the input shaft of the power transmission gear unit. The four-wheel drive system comprises: an engagement member being rotatable about a rotational axis located in a lateral direction of the vehicle, the engagement member being held in driving engagement with the output shaft of the power transmission gear unit; a central differential gear assembly including a central input member fixed to and coaxially rotatable with the engagement member about the rotational axis of the engagement member and including a first central output member and a second central output member enclosed within the central input member. The first and second central output members are rotatable at different speeds about rotational axes substantially aligned with the rotational axis of the engagement member; and a first wheel differential gear assemblymore »« less

Inventors:: Sasaki, K; Takimura, K; Katayama, N; Tsuchiya, F

Publication Date:: Tue Feb 24 00:00:00 EST 1987

OSTI Identifier:: 6719895

Patent Number(s):: US 4645029

Assignee:: Toyota Jidosha Kabushiki Kaisha, Aichi

Resource Type:: Patent

Resource Relation:: Patent File Date: Filed date 5 Nov 1985

Country of Publication:: United States

Language:: English

Subject:: 33 ADVANCED PROPULSION SYSTEMS; MECHANICAL TRANSMISSIONS; DESIGN; OPERATION; VEHICLES; ALIGNMENT; GEARS; INCIDENCE ANGLE; POWER TRANSMISSION; ROTATION; SHAFTS; VELOCITY; WHEELS; MACHINE PARTS; MOTION; 330602* - Vehicle Design Factors- Engine-Transmission Matching

Citation Formats


                    Sasaki, K, Takimura, K, Katayama, N, and Tsuchiya, F. Four-wheel vehicle drive system.  United States: N. p., 1987. 
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                    Sasaki, K, Takimura, K, Katayama, N, & Tsuchiya, F. Four-wheel vehicle drive system.  United States.

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                    Sasaki, K, Takimura, K, Katayama, N, and Tsuchiya, F. 1987.  
        "Four-wheel vehicle drive system".  United States.

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@article{osti_6719895,

  title        = {Four-wheel vehicle drive system},

  author       = {Sasaki, K and Takimura, K and Katayama, N and Tsuchiya, F},

  abstractNote = {A four-wheel drive system is described for use in a vehicle including a first and second pair of road wheels, a power unit including an output shaft, and a power transmission gear unit including input and output shafts. The input shaft of the power transmission gear unit is selectively connected to the output shaft of the power unit. The output shaft of the power transmission gear unit selectively is in driving engagement with the input shaft of the power transmission gear unit. The four-wheel drive system comprises: an engagement member being rotatable about a rotational axis located in a lateral direction of the vehicle, the engagement member being held in driving engagement with the output shaft of the power transmission gear unit; a central differential gear assembly including a central input member fixed to and coaxially rotatable with the engagement member about the rotational axis of the engagement member and including a first central output member and a second central output member enclosed within the central input member. The first and second central output members are rotatable at different speeds about rotational axes substantially aligned with the rotational axis of the engagement member; and a first wheel differential gear assembly being enclosed within the central input member of the central differential gear assembly and including a first wheel input member being rotatable with the first central output member of the central differential gear assembly about the rotational axis of the engagement member and two first wheel output members.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/6719895},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Feb 24 00:00:00 EST 1987},

  month        = {Tue Feb 24 00:00:00 EST 1987}

}

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