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US 2005/0090367 A1Published application
V-belt continuously variable transmission for a vehicle engine
AssigneePivario AB
InventorsJohn Jonsson, Rolf Jonsson
Life of this patent
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AssigneePivario AB
InventorsJohn Jonsson, Rolf Jonsson
Estimating the term…
A control device for controlling a V-belt CVT (Continuously Variable Transmission) which is connectible to a vehicle engine and comprises a primary variator and a secondary variator. The control device has a plurality of sensors which generate electronic measured values, comprising an engine speed sensor which generates a first measured value, and a power sensor which generates a second measured value which is related to the torque of an output drive shaft connected to the secondary variator. The control device further comprises an electronic control unit which is adapted to control the V-belt CVT based on said measured values. A V-belt CVT having a control device as stated above, and a method for controlling such a V-belt CVT are also provided.
A control device for controlling a V-belt CVT which is connectible to a vehicle engine and comprises a primary variator and a secondary variator, the control device having a plurality of sensors which generate electronic measured values, comprising an engine speed sensor which generates a first measured value, and a power sensor which generates a second measured value, which is related to the torque of an output drive shaft connected to the secondary variator, and an electronic control unit which is adapted to control the V-belt CVT based on said measured values.
A V-belt CVT which is adapted to be connected to a vehicle engine, said V-belt CVT comprising a primary variator and a secondary variator, and a control device for controlling the V-belt CVT, the control device having a plurality of sensors which generate electronic measured values, comprising an engine speed sensor which generates a first measured value, and, a power sensor which generates a second measured value, which is related to the torque of an output drive shaft connected to the secondary variator, and an electronic control unit which is adapted to control the V-belt CVT based on said measured values.
A method for controlling a V-belt CVT which is connected to a vehicle engine and comprises a primary variator and a secondary variator, comprising the step of detecting and generating a first electronic measured value which is related to the speed of the vehicle engine, comprising the steps of
A control device for controlling a V-belt CVT which is connectible to a vehicle engine and comprises a primary variator and a secondary variator, the control device having at least one sensor generating an electronic measured value, said at least one sensor being selected from a group of sensors comprising a primary speed sensor, sensing the engine speed or a speed proportional thereto, a secondary speed sensor, sensing the speed of the secondary variator or a speed proportional thereto, a power sensor generating a measured value related to the torque of an output drive shaft connected to the secondary variator, and a throttle sensor, wherein the control device further comprises an electronic control unit which is adapted to control the V-belt CVT based on said electronic measured value, and a clamping power actuator which is connected to the control unit and to the primary variator, wherein the electronic control unit is adapted to set the V-belt clamping power of the primary variator by means of the clamping power actuator.
Dependencies are inferred from the claim text.