Measuring and testing – Speed – velocity – or acceleration – Indicating diverse conditions
Patent
1995-11-17
1997-07-29
Chilcot, Richard
Measuring and testing
Speed, velocity, or acceleration
Indicating diverse conditions
180197, 364426031, B60K 2816
Patent
active
056523831
ABSTRACT:
A first longitudinal grip force FGG is calculated by differentiating a vehicle body speed by time. A driven wheel torque is calculated from an engine torque and a second longitudinal grip force FGT is calculated from the driven wheel torque. The first longitudinal grip force FGG and the second longitudinal grip force FGT are compared with each other, and the higher one of such grip force is selected as a longitudinal grip force TG. When the vehicle travels on a normal flat road, the first longitudinal grip force FGG obtained from the vehicle body speed is selected. But when the vehicle travels on an ascent road, on which the first longitudinal grip does not indicate an accurate value, the second longitudinal grip force FGT obtained from the engine torque is selected. With this arrangement, the longitudinal grip force is accurately estimated even if the vehicle travels on such an ascent road.
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Shiraishi Shuji
Yamamoto Osamu
Yano Osamu
Chilcot Richard
Honda Giken Kogyo Kabushiki Kaisha
McCall Eric S.
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