Temperature dependent trigger control for a traction control system
First Claim
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1. A method of controlling traction of a vehicle comprising:
- determining a slip target;
determining an operating temperature;
determining a traction control slip trigger threshold above the slip target in response to the operating temperature, the slip target being determined independently of the operating temperature; and
entering a traction control mode when a driven wheel is above the slip trigger threshold.
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Abstract
A method a operating a traction control system using a traction controller (30) for an automotive vehicle (10) is provided. A slip target is first determined. Then, an operating temperature turning characteristic or slope of the slip curve may, in combination or alone, be used to adjust the slip trigger threshold above the slip target. Traction control mode is entered when the driven wheel speed is above the slip trigger threshold.
44 Citations
21 Claims
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1. A method of controlling traction of a vehicle comprising:
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determining a slip target; determining an operating temperature; determining a traction control slip trigger threshold above the slip target in response to the operating temperature, the slip target being determined independently of the operating temperature; and entering a traction control mode when a driven wheel is above the slip trigger threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of controlling traction of a vehicle comprising;
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determining a slip target; determining an turning characteristic; determining a traction control slip trigger threshold above the slip target in response to the turning characteristic, the slip target being determined independently of the turning characteristic; and entering a traction control mode when a driven wheel is above the slip trigger threshold. - View Dependent Claims (17, 18)
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19. A method of controlling traction of a vehicle comprising:
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determining a slip target; determining a change in slip; determining a traction control slip trigger threshold above the slip target in response to the change in slip, the slip target being determined independently of the change in slip; and entering a traction control mode when a driven wheel is above the slip trigger threshold. - View Dependent Claims (20, 21)
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Specification