Stability factor learning method and apparatus for a vehicle and control apparatus for a vehicle
First Claim
1. A stability factor learning method for a vehicle for learning a stability factor of said vehicle in a state of said vehicle during traveling, comprising:
- a decision step of detecting a state of said vehicle during traveling and deciding based on the detection information whether or not the current traveling state of said vehicle is a stable turning state; and
a learning step of calculating, based on a vehicle body speed Vbody, a steering angle δ and
a yaw rate Yawbody detected during traveling, a stability factor A of said vehicle in accordance with an arithmetic operation expression (1);
and then setting, if it is decided at the decision step that the current traveling state of said vehicle is a stable turning state, the calculated value as a learned value of the stability factor A of said vehicle.
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Abstract
The invention provides a technique for learning a stability factor of a vehicle by which the stability factor of the vehicle can be calculated in response to a state of the vehicle. To this end, a state of the vehicle during traveling is detected, and it is decided based on the detection information whether or not the current traveling state of the vehicle is a stable turning state. If it is decided that the current traveling state of the vehicle is a stable turning state, then the stability factor of the vehicle is calculated in accordance with a predetermined arithmetic operation expression based on a vehicle speed, a steering angle and a yaw rate detected during traveling, and the calculated value is determined as a learned value of the stability factor of the vehicle thereby to determine the stability factor in the current state of the vehicle.
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Citations
10 Claims
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1. A stability factor learning method for a vehicle for learning a stability factor of said vehicle in a state of said vehicle during traveling, comprising:
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a decision step of detecting a state of said vehicle during traveling and deciding based on the detection information whether or not the current traveling state of said vehicle is a stable turning state; and a learning step of calculating, based on a vehicle body speed Vbody, a steering angle δ and
a yaw rate Yawbody detected during traveling, a stability factor A of said vehicle in accordance with an arithmetic operation expression (1);
and then setting, if it is decided at the decision step that the current traveling state of said vehicle is a stable turning state, the calculated value as a learned value of the stability factor A of said vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification