Vehicle cruise control
First Claim
1. A vehicle comprising:
- a vehicle body;
a seat for a driver associated with the vehicle body;
an engine associated with the vehicle body for powering the vehicle, the engine having at least one combustion chamber;
an electronic control unit (ECU) on the vehicle for controlling operation of the engine in one of a normal operation mode and a cruise control operation mode;
a throttle body in fluid communication with the at least one combustion chamber;
a throttle valve disposed in the throttle body for controlling an amount of air supplied to the at least one combustion chamber;
a throttle valve actuator operatively connected to the throttle valve and in electronic communication with the ECU;
a throttle operator disposed on the vehicle in proximity to the seat;
a throttle operator position sensor for sensing a throttle operator position and in electronic communication with the ECU for sending a signal representative of a throttle operator position to the ECU;
a cruise control switch disposed on the vehicle in proximity to the seat and in electronic communication with the ECU for engaging and disengaging the cruise control operation mode; and
a vehicle speed sensor for sensing a vehicle speed and in electronic communication with the ECU for sending a signal representative of a vehicle speed to the ECU,when in the normal operation mode, the ECU sends a first control signal to the throttle valve actuator based on the throttle operator position signal,when the cruise control switch engages the cruise control operation mode, the ECU sends a second control signal to the throttle valve actuator based on the vehicle speed signal such that the vehicle speed is maintained at a vehicle cruising speed;
the throttle valve actuator adjusting a degree of opening of the throttle valve in response to the first and second control signals,the ECU returning to the normal operation mode when the throttle operator position becomes less than or equal to a reference throttle operator position.
5 Assignments
0 Petitions
Accused Products
Abstract
A vehicle having a vehicle body, a seat, an engine, a throttle body, a throttle valve, a throttle valve actuator, a throttle operator, a throttle operator position sensor, a cruise control switch, and a vehicle speed sensor. An ECU controls operation of the engine in one of a normal operation mode and a cruise control operation mode. When in the normal operation mode, the ECU sends a first control signal to the throttle valve actuator based on the throttle operator position signal. When the cruise control switch engages the cruise control operation mode, the ECU sends a second control signal to the throttle valve actuator based on the vehicle speed signal such that the vehicle speed is maintained at a vehicle cruising speed. The ECU returns to the normal operation mode when the throttle operator position becomes less than or equal to a reference throttle operator position.
67 Citations
37 Claims
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1. A vehicle comprising:
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a vehicle body; a seat for a driver associated with the vehicle body; an engine associated with the vehicle body for powering the vehicle, the engine having at least one combustion chamber; an electronic control unit (ECU) on the vehicle for controlling operation of the engine in one of a normal operation mode and a cruise control operation mode; a throttle body in fluid communication with the at least one combustion chamber; a throttle valve disposed in the throttle body for controlling an amount of air supplied to the at least one combustion chamber; a throttle valve actuator operatively connected to the throttle valve and in electronic communication with the ECU; a throttle operator disposed on the vehicle in proximity to the seat; a throttle operator position sensor for sensing a throttle operator position and in electronic communication with the ECU for sending a signal representative of a throttle operator position to the ECU; a cruise control switch disposed on the vehicle in proximity to the seat and in electronic communication with the ECU for engaging and disengaging the cruise control operation mode; and a vehicle speed sensor for sensing a vehicle speed and in electronic communication with the ECU for sending a signal representative of a vehicle speed to the ECU, when in the normal operation mode, the ECU sends a first control signal to the throttle valve actuator based on the throttle operator position signal, when the cruise control switch engages the cruise control operation mode, the ECU sends a second control signal to the throttle valve actuator based on the vehicle speed signal such that the vehicle speed is maintained at a vehicle cruising speed; the throttle valve actuator adjusting a degree of opening of the throttle valve in response to the first and second control signals, the ECU returning to the normal operation mode when the throttle operator position becomes less than or equal to a reference throttle operator position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of controlling an engine of a vehicle, the engine having at least one combustion chamber, the vehicle having a throttle operator, a throttle body in fluid communication with the at least one combustion chamber, a throttle valve disposed in the throttle body for controlling an amount of air supplied to the at least one combustion chamber, and a throttle valve actuator operatively connected to the throttle valve for adjusting a degree of opening of the throttle valve, the method comprising:
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sensing a throttle operator position; operating the engine in a normal operation mode wherein the degree of opening of the throttle valve is adjusted based on the throttle operator position; engaging a cruise control operation mode; sensing a vehicle speed; operating the engine in the cruise control operation mode wherein the degree of opening of the throttle valve is adjusted based on the vehicle speed such that the vehicle speed is maintained at a vehicle cruising speed; and disengaging the cruise control operation mode when the throttle operator position becomes less than or equal to a reference throttle operator position. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A method of controlling an engine of a vehicle, the engine having at least one combustion chamber, the vehicle having a throttle operator, a throttle body in fluid communication with the at least one combustion chamber, a throttle valve disposed in the throttle body for controlling an amount of air supplied to the at least one combustion chamber, and a throttle valve actuator operatively connected to the throttle valve for adjusting a degree of opening of the throttle valve, the method comprising:
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sensing a throttle operator position; operating the engine in a normal operation mode wherein the degree of opening of the throttle valve is adjusted based on the throttle operator position; engaging a cruise control operation mode; sensing a vehicle speed; operating the engine in the cruise control operation mode wherein the degree of opening of the throttle valve is adjusted based on the vehicle speed such that the vehicle speed is maintained at a vehicle cruising speed; releasing the throttle operator to a fully released position after the cruise control operation mode has been engaged; and disengaging the cruise control operation mode when the throttle operator position is actuated after it has been released to the fully released position.
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32. A vehicle comprising:
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a vehicle body; a seat for a driver associated with the vehicle body; an engine associated with the vehicle body for powering the vehicle, the engine having at least one combustion chamber; an electronic control unit (ECU) on the vehicle for controlling operation of the engine in one of a normal operation mode and a cruise control operation mode; a throttle body in fluid communication with the at least one combustion chamber; a throttle valve disposed in the throttle body for controlling an amount of air supplied to the at least one combustion chamber; a throttle valve actuator operatively connected to the throttle valve and in electronic communication with the ECU; a throttle operator disposed on the vehicle in proximity to the seat; a throttle operator position sensor for sensing a throttle operator position and in electronic communication with the ECU for sending a signal representative of a throttle operator position to the ECU; a cruise control switch disposed on the vehicle in proximity to the seat and in electronic communication with the ECU for engaging and disengaging the cruise control operation mode; and a vehicle speed sensor for sensing a vehicle speed and in electronic communication with the ECU for sending a signal representative of a vehicle speed to the ECU, when in the normal operation mode, the ECU sends a first control signal to the throttle valve actuator based on the throttle operator position signal, and the throttle valve actuator adjusting a degree of opening of the throttle valve in response to the first control signal; when the cruise control switch engages the cruise control operation mode, the ECU sends a second control signal to the throttle valve actuator based on the vehicle speed signal, the throttle valve actuator adjusting a degree of opening of the throttle valve in response to the second control signal, if the vehicle speed is lower than a vehicle cruising speed, the second control signal causing the throttle valve actuator to adjust the degree of opening of the throttle valve based on the throttle operator position signal, and if the vehicle speed is higher than the vehicle cruising speed, the second control signal causing the throttle valve actuator to reduce the degree of opening of the throttle valve such that the vehicle speed is maintained at the vehicle cruising speed. - View Dependent Claims (33, 34, 35, 36)
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37. A method of controlling an engine of a vehicle, the engine having at least one combustion chamber, the vehicle having a throttle operator, a throttle body in fluid communication with the at least one combustion chamber, a throttle valve disposed in the throttle body for controlling an amount of air supplied to the at least one combustion chamber, and a throttle valve actuator operatively connected to the throttle valve for adjusting a degree of opening of the throttle valve, the method comprising:
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sensing a throttle operator position; operating the engine in a normal operation mode wherein the degree of opening of the throttle valve is adjusted based on the throttle operator position; engaging a cruise control operation mode; while in the cruise control operation mode; sensing a vehicle speed; comparing the vehicle speed to a vehicle cruising speed; if the vehicle speed is lower than the vehicle cruising speed, adjusting the degree of opening of the throttle valve based on the throttle operator position; and if the vehicle speed is higher than the vehicle cruising speed, reducing the degree of opening of the throttle valve until the vehicle speed is at the vehicle cruising speed.
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Specification