Boots – shoes – and leggings
Patent
1991-01-22
1993-06-01
Black, Thomas G.
Boots, shoes, and leggings
36442601, 180197, B60K 2600
Patent
active
052166082
ABSTRACT:
An apparatus for effecting a method for estimating the friction coefficient of a road surface according to the present invention comprises front- and rear-wheel rotation sensors for detecting the running speed of a vehicle, a linear G sensor for detecting an actual transverse acceleration of the vehicle, a steering angle sensor for detecting the steering angle of front wheels, and a torque calculating unit supplied with the vehicle speed, actual transverse acceleration, and steering angle detected by means of these sensors. In the torque calculating unit, which takes account of an assumed value of the stability factor of the vehicle in addition to the vehicle speed, actual transverse acceleration, and steering angle, a target transverse acceleration required by a driver is calculated, for example, and whether or not the friction coefficient of the road surface is low is then estimated according to the relationship between the calculated target transverse acceleration and the actual transverse acceleration.
REFERENCES:
patent: 3538742 (1968-10-01), Benning
patent: 3893330 (1975-07-01), Shute et al.
patent: 4212063 (1980-07-01), Hardmark
patent: 4315426 (1982-02-01), Brandon
patent: 4594878 (1986-06-01), Abe et al.
patent: 4637487 (1987-01-01), Nakamura et al.
patent: 4669569 (1987-06-01), Suzuki et al.
patent: 4779447 (1988-10-01), Rath
patent: 4794539 (1988-12-01), Wallentowitz et al.
patent: 4825367 (1989-04-01), Nagaoka et al.
patent: 4841446 (1989-06-01), Leiber et al.
patent: 4855917 (1989-08-01), Sawano et al.
patent: 4933857 (1990-06-01), Hashiguchi et al.
patent: 4976330 (1990-12-01), Matsumoto
patent: 4998593 (1991-03-01), Karnopp et al.
patent: 5005132 (1991-04-01), Yoshino
patent: 5015041 (1991-05-01), Kuwana et al.
patent: 5029090 (1991-07-01), Kuhn et al.
patent: 5046461 (1991-09-01), Kanehiro et al.
Highway Research Record, No. 214, Dec. 1968, H. Domandl et al., "Measuring Tire Friction Under Slip With the Penn State Road Friction Tester", Highway Research Record.
Hashiguchi Masayuki
Isoda Keiji
Ito Masayoshi
Shigehara Toshio
Yamada Kiichi
Auchterlonie Thomas S.
Black Thomas G.
Mitsubishi Jidosha Kogyo Kabushiki Kaisha
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