Slip control system for automotive vehicle
First Claim
1. A slip control system for an automotive vehicle, comprising:
- slip detecting means for detecting wheel slip of a driven wheel relative to a surface of the road;
torque adjusting means for adjusting torque applied to the wheel by adjusting at least one of engine output and braking force applied to the wheel;
slip control means for controlling said torque adjusting means so as to suppress the wheel slip detected by said slip detecting means;
outside air temperature sensing means for sensing outside air temperature; and
control degree altering means for altering a control degree for slip control to a greater extent when the outside air temperature sensed by said outside air temperature sensing means is lower than a predetermined value than when the outside air temperature is higher.
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Accused Products
Abstract
In performing slip control such as traction control or ABS control, a control degree for slip control is changed in accordance with a temperature of outside air, or outside air temperature. The slip control system enhances response to slip control on a road surface having a lower road surface friction coefficient μ, or a slippery road, and prevent a frequent execution of slip control on a road surface having a higher road surface friction coefficient μ, by appropriating the setting of the road surface friction coefficient μ in accordance with the outside air temperature. A mode of changing the control degree for slip control includes, for example, a change of the condition for starting slip control, a change of a target value for slip control, and a change of an initial value of the road surface friction coefficient μ, in accordance with the outside air temperature.
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Citations
32 Claims
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1. A slip control system for an automotive vehicle, comprising:
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slip detecting means for detecting wheel slip of a driven wheel relative to a surface of the road; torque adjusting means for adjusting torque applied to the wheel by adjusting at least one of engine output and braking force applied to the wheel; slip control means for controlling said torque adjusting means so as to suppress the wheel slip detected by said slip detecting means; outside air temperature sensing means for sensing outside air temperature; and control degree altering means for altering a control degree for slip control to a greater extent when the outside air temperature sensed by said outside air temperature sensing means is lower than a predetermined value than when the outside air temperature is higher. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification