CONTROL OF A CHANGE-GEAR TRANSMISSION
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Accused Products
Abstract
A change-gear transmission system includes a transmission that can be switched between multiple gears, a gearshift lever for selecting between the gears of the transmission, an automatically actuatable clutch, which is arranged in a drive train in series with the transmission and a control unit for automatically opening the clutch while maintaining a gear engaged in the transmission when a condition for the transition into coasting or gliding mode is fulfilled. The control unit is configured to detect a touch of the gearshift lever by the driver, to open the clutch only when no touch of the gearshift lever is detected, and further in the case that in the coasting or gliding mode, a touch of the gearshift lever is detected, to close the clutch while maintaining the engaged gear.
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Citations
30 Claims
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1-15. -15. (canceled)
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16. A change-gear transmission system for a vehicle comprising:
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a transmission switchable between a plurality of gears; a gearshift lever for selectively engaging one of the plurality of gears; a clutch assembly arranged in a drive train in series with the transmission and operable to configure the drive train in a coasting mode; an actuator coupled to the clutch assembly and operable to open and close the clutch assemble; and a control unit configured to detect a touch of the gearshift lever and to determine a condition for transiting the drive train into the coasting mode, wherein the control unit operates the actuator to open the clutch assembly when the condition for transiting into the coasting mode is fulfilled and the gearshift lever is not touched. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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24. A method for controlling a change-gear transmission system having a transmission switchable between a plurality of gears, a gearshift lever for selectively engaging one of the plurality of gears, a clutch assembly arranged in a drive train in series with the transmission and operable to configure the drive train in a coasting mode, an actuator coupled to the clutch assembly and operable to open and close the clutch assemble, and a control unit configured to selectively control the actuator, the method comprising:
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determining when a first condition for opening the clutch assembly is fulfilled; determining a second condition when the gearshift lever is untouched; and opening the clutch when the first and second conditions are fulfilled. - View Dependent Claims (25, 26, 27)
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28. A non-transitory computer readable medium comprising program instructions, which when executed on a computer enable the computer to:
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determine when a first condition for opening the clutch assembly is fulfilled; determine a second condition when the gearshift lever is untouched; open the clutch when the first and second conditions are fulfilled; close the clutch assembly while maintaining an engaged gear when a touch of the gearshift lever is detected, and the drive train is in the coasting mode. - View Dependent Claims (29, 30)
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Specification