Vehicle slip control apparatus
First Claim
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1. A vehicle slip control apparatus for preventing an excessive degree of slippage or spinning by a driven wheel on a road surface by controlling a torque transmitted to the driven wheel, the slip control apparatus comprising:
- output torque adjusting means for adjusting an output torque of a power source functioning as a source of the output torque;
braking force adjusting means for adjusting a braking force of a brake for the driven wheel;
slip detecting means for detecting a degree of slippage of the driven wheel on the road surface;
first slip control means for controlling said braking force adjusting means so as to allow the degree of slippage detected by said slip detecting means to reach a first target value, said first slip control means being operable when the degree of slippage detected by said slip detecting means is equal to or larger than a predetermined value;
second slip control means for controlling said output torque adjusting means so as to allow the degree of slippage detected by said slip detecting means to reach a second target value, said second slip control means being operable when the degree of slippage detected by said slip detecting means is equal to or larger than a predetermined value;
control ratio altering means for altering a control ratio of the first target value to the second target value by changing at least one of the first and second target values when slip control is executed using both the first and the second slip control means;
instruction means for providing an instruction to said control ratio altering means to alter said control ratio in accordance with requirements for driving the vehicle.
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Accused Products
Abstract
The vehicle slip control apparatus is designed so as to enable the slip control to be done by causing the output torque of the engine to be reduced and operating the brake when an amount of a slip or spinning of the driven wheels is large. A control ratio of the slip control by the brake to the slip control by the engine is altered to an optimum value in accordance with requirements for the driving of the vehicle.
64 Citations
20 Claims
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1. A vehicle slip control apparatus for preventing an excessive degree of slippage or spinning by a driven wheel on a road surface by controlling a torque transmitted to the driven wheel, the slip control apparatus comprising:
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output torque adjusting means for adjusting an output torque of a power source functioning as a source of the output torque; braking force adjusting means for adjusting a braking force of a brake for the driven wheel; slip detecting means for detecting a degree of slippage of the driven wheel on the road surface; first slip control means for controlling said braking force adjusting means so as to allow the degree of slippage detected by said slip detecting means to reach a first target value, said first slip control means being operable when the degree of slippage detected by said slip detecting means is equal to or larger than a predetermined value; second slip control means for controlling said output torque adjusting means so as to allow the degree of slippage detected by said slip detecting means to reach a second target value, said second slip control means being operable when the degree of slippage detected by said slip detecting means is equal to or larger than a predetermined value; control ratio altering means for altering a control ratio of the first target value to the second target value by changing at least one of the first and second target values when slip control is executed using both the first and the second slip control means; instruction means for providing an instruction to said control ratio altering means to alter said control ratio in accordance with requirements for driving the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A vehicle slip control apparatus for preventing an excessive degree of slippage or spinning by a driven wheel on a road surface by controlling a torque transmitted to the driven wheel, the slip control apparatus comprising:
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output torque adjusting means for adjusting an output torque of a power source functioning as a source of the output torque; braking force adjusting means for adjusting a braking force of a brake for the driven wheel; slip detecting means for detecting a degree of slippage of the driven wheel on the road surface; first slip control means for controlling said braking force adjusting means so as to allow the degree of slippage detected by said slip detecting means to reach a first target value, said first slip control means being operable when the degree of slippage detected by said slip detecting means is equal to or larger than the first target value; second slip control means for controlling said output torque adjusting means so as to allow the degree of slippage detected by said slip detecting means to reach a second target value, said second target value being smaller than said first target value, said second slip control means being operable when the degree of slippage detected by said slip detecting means is equal to or larger than the second target value; control state altering means for altering a control state so as to execute slip control only by said first slip control means by suspending the second slip control means; instruction means for providing an instruction to operate said control state altering means in accordance with requirements for driving the vehicle. - View Dependent Claims (17)
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18. A vehicle slip control apparatus for preventing an excessive degree of slippage or spinning by a driven wheel on a road surface by controlling a torque transmitted to the driven wheel, the slip control apparatus comprising:
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output torque adjusting means for adjusting an output torque of a power source functioning as a source of the output torque; braking force adjusting means for adjusting a braking force of a brake for the driven wheel; slip detecting means for detecting a degree of slippage of the driven wheel on the road surface; first slip control means for controlling said braking force adjusting means so as to allow the degree of slippage detected by said slip detecting means to reach a first target value, said first slip control means being operable when the degree of slippage detected by said slip detecting means is equal to or larger than the first target value; second slip control means for controlling said output torque adjusting means so as to allow the degree of slippage detected by said slip detecting means to reach a second target value, said second target value being smaller than said first target value, said second slip control means being operable when the degree of slippage detected by said slip detecting means is equal to or larger than the second target value; control ratio altering means for altering a control ratio of the first target value to the second target value by changing a difference between the first and second target values; instruction means for providing an instruction to said control ratio altering means to alter said control ratio in accordance with requirements for driving the vehicle. - View Dependent Claims (19, 20)
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Specification