Vehicle drive unit

Details Vehicle drive unit Vehicle drive unit

2006-01-27

2008-11-25

Dickson, Paul N (Department: 3611)

Motor vehicles

Having four wheels driven

Including pump and fluid motor, or generator and electric...

C180S065100, C180S197000, C180S305000

Reexamination Certificate

active

07455143

ABSTRACT:
A vehicle drive unit, for quickly recovering a grip even if a wheel slips, in which in a slip state or at a time when the slip state is going to be generated, by pulsating a torque applied to the wheel, an angular velocity W of the wheel is changed so as to change the slip ratio S close to a slip ratio at which a friction coefficient becomes maximum, and thus, an average of a friction coefficient μ is enlarged and an average of a vehicle driving force F generated by a wheel is enlarged. Since the vehicle driving force is enlarged, the vehicle is accelerated and is easily gripped. Further, in a grip state or at a time of traveling at a high velocity, a vibration and an undesired sound are suppressed by doing away with the torque pulsation or making the fluctuation band of the torque pulsation small.

REFERENCES:
patent: 3967862 (1976-07-01), Hunter et al.
patent: 4554990 (1985-11-01), Kamiya et al.
patent: 4733760 (1988-03-01), Inagaki et al.
patent: 6113517 (2000-09-01), Salecker et al.
patent: 6405701 (2002-06-01), Masberg et al.
patent: 6742639 (2004-06-01), Aikawa et al.
patent: 7121975 (2006-10-01), Tomura et al.
patent: 7206702 (2007-04-01), Isono et al.
patent: 2004/0142790 (2004-07-01), Tomura et al.
patent: 2005/0012501 (2005-01-01), Isono et al.
patent: 2005/0139400 (2005-06-01), Gee
patent: 2007/0095589 (2007-05-01), Tamai et al.
patent: 2007/0265751 (2007-11-01), Tsuchiya
patent: 0 125 659 (1984-11-01), None
patent: 0 354 790 (1990-02-01), None
patent: 2 343 428 (2000-05-01), None
patent: A-08-182119 (1996-12-01), None
European Search Report dated Feb. 28, 2007 (Five (5) pages).

Affiliated with

Also associated with

Rating

Vehicle drive unit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vehicle drive unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vehicle drive unit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4048657