Dynamic behavior estimate system of automotive vehicle
First Claim
1. A dynamic behavior estimate system of an automotive vehicle which discriminates an instability of the vehicle, comprising:
- parameter reading means for reading a signal indicative of one of vehicle behavior parameters with respect to the vehicle when operating in a curved path;
discriminating means for outputting a detection signal indicative of discrimination of an instability of the vehicle when a value from said one of the vehicle behavior parameters indicated by said signal exceeds a reference value;
slip angle detecting means, coupled to said discriminating means, for detecting a maximum slip angle that can hold a lateral force of rear wheels of the vehicle below a critical value, and for setting the reference value equal to said maximum slip angle; and
inference value setting means for determining an inference value from said one of the vehicle behavior parameters indicated by said signal, and for setting said value, used by said discriminating means, equal to the inference value, thereby allowing said discriminating means to detect whether the inference value exceeds the reference value.
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Accused Products
Abstract
A dynamic behavior estimate system of an automotive vehicle includes a parameter reading unit which reads an input signal indicative of one of vehicle behavior parameters when the vehicle operates in a curved path. A discriminating unit outputs a detection signal indicative of discrimination of an instability of the vehicle when an inference value from the above one of the vehicle behavior parameters exceeds a reference value. A slip angle detecting unit detects a maximum slip angle that can hold a lateral force of front or rear wheels of the vehicle below a critical value, and sets the reference value equal to the maximum slip angle. An inference value setting unit determines an inference value from the above one of the vehicle behavior parameters, and sets the value, used by the discriminating unit, equal to the inference value, thereby allowing the discriminating unit to detect whether the inference value exceeds the reference value.
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Citations
15 Claims
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1. A dynamic behavior estimate system of an automotive vehicle which discriminates an instability of the vehicle, comprising:
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parameter reading means for reading a signal indicative of one of vehicle behavior parameters with respect to the vehicle when operating in a curved path; discriminating means for outputting a detection signal indicative of discrimination of an instability of the vehicle when a value from said one of the vehicle behavior parameters indicated by said signal exceeds a reference value; slip angle detecting means, coupled to said discriminating means, for detecting a maximum slip angle that can hold a lateral force of rear wheels of the vehicle below a critical value, and for setting the reference value equal to said maximum slip angle; and inference value setting means for determining an inference value from said one of the vehicle behavior parameters indicated by said signal, and for setting said value, used by said discriminating means, equal to the inference value, thereby allowing said discriminating means to detect whether the inference value exceeds the reference value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A dynamic behavior estimate system of an automotive vehicle which discriminates an instability of the vehicle, comprising:
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parameter reading means for reading a signal indicative of one of vehicle behavior parameters with respect to the vehicle when operating in a curved path; discriminating means for outputting a detection signal indicative of discrimination of an instability of the vehicle when a value from said one of the vehicle behavior parameters indicated by said signal exceeds a reference value; slip angle detecting means, coupled to said discriminating means, for detecting a maximum slip angle that can hold a lateral force of front wheels of the vehicle below a critical value, and for setting the reference value equal to said maximum slip angle; and inference value setting means for determining an inference value from said one of the vehicle behavior parameters indicated by said signal, and for setting said value, used by said discriminating means, equal to the inference value, thereby allowing said discriminating means to detect whether the inference value exceeds the reference value. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification