Continuously variable transmission control system for vehicle
First Claim
1. A continuously variable transmission control system for a vehicle, comprising:
- a continuously variable transmission device having a belt bridged over a driving pulley on a side of a motive power source and a driven pulley on a side of a wheel, and an electricity-driven actuator that moves a moveable sheave of at least one of the driving pulley and the driven pulley in the axial direction, to change a width between the moveable sheave and a fixed sheave;
a control device that controls driving of the electricity-driven actuator; and
an acceleration operation detection unit that detects an operation state of an acceleration operation unit, whereinthe control devicemoves the moveable sheave in the axial direction using the electricity-driven actuator so that a reduction ratio of the continuously variable transmission device is reduced as an amount of operation of the acceleration operation unit is increased at least in a predetermined operation amount range,according to acquisition of a switching command signal that commands switching between a two-wheel drive and a four-wheel drive, sets a two-wheel drive predetermined reduction ratio or a four-wheel drive predetermined reduction ratio that is greater than the two-wheel drive predetermined reduction ratio, andregulates a movement range of the moveable sheave so that a minimum reduction ratio of the continuously variable transmission device is set at the set predetermined reduction ratio.
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Accused Products
Abstract
A continuously variable transmission control system for a vehicle has a continuously variable transmission device having a belt which is bridged over a driving pulley on a motive power source side and a driven pulley on a wheel side, and an electricity-driven actuator that moves a moveable sheave of at least one of the driving pulley and the driven pulley in the axial direction, to change a width between the moveable sheave and a fixed sheave, a control device that controls driving of the electricity-driven actuator, and an acceleration operation detection unit that detects an operation state of an acceleration operation unit. The control device moves the moveable sheave in the axial direction using the electricity-driven actuator so that a reduction ratio of the continuously variable transmission device is reduced as an amount of operation of the acceleration operation unit is increased at least in a predetermined operation amount range.
10 Citations
4 Claims
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1. A continuously variable transmission control system for a vehicle, comprising:
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a continuously variable transmission device having a belt bridged over a driving pulley on a side of a motive power source and a driven pulley on a side of a wheel, and an electricity-driven actuator that moves a moveable sheave of at least one of the driving pulley and the driven pulley in the axial direction, to change a width between the moveable sheave and a fixed sheave; a control device that controls driving of the electricity-driven actuator; and an acceleration operation detection unit that detects an operation state of an acceleration operation unit, wherein the control device moves the moveable sheave in the axial direction using the electricity-driven actuator so that a reduction ratio of the continuously variable transmission device is reduced as an amount of operation of the acceleration operation unit is increased at least in a predetermined operation amount range, according to acquisition of a switching command signal that commands switching between a two-wheel drive and a four-wheel drive, sets a two-wheel drive predetermined reduction ratio or a four-wheel drive predetermined reduction ratio that is greater than the two-wheel drive predetermined reduction ratio, and regulates a movement range of the moveable sheave so that a minimum reduction ratio of the continuously variable transmission device is set at the set predetermined reduction ratio. - View Dependent Claims (2, 3, 4)
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Specification