Utility vehicle
AssigneeKawasaki Jukogyo Kabushiki Kaisha
InventorYoshimoto Matsuda
Life of this patent
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Abstract
A utility vehicle comprises a traveling driving power source which generates rotational driving power for driving a drive wheel; a continuously variable transmission including an input shaft to which the rotational driving power transmitted from the traveling driving power source is input, an output shaft which outputs the rotational driving power toward the drive wheel, a drive pulley provided at the input shaft, a driven pulley provided at the output shaft, and a belt wrapped around the drive pulley and the driven pulley; a clutch which is disposed in a driving power transmission path at a location that is between the belt and the drive wheel and is capable of disconnecting the driving power transmission path; and a clutch actuator which operates the clutch.
Claims20
A utility vehicle comprising:
- a traveling driving power source which generates rotational driving power for driving a drive wheel;
- a continuously variable transmission including an input shaft to which the rotational driving power transmitted from the traveling driving power source is input, an output shaft which outputs the rotational driving power toward the drive wheel, a drive pulley provided at the input shaft, a driven pulley provided at the output shaft, and a belt wrapped around the drive pulley and the driven pulley;
- an excessive load detector which detects that an excessive load will be applied to the drive wheel by detecting a change in a rotational speed of a driving power transmission system from the traveling driving power source to the drive wheel;
- and
- a belt protection controller which executes belt protection control of suppressing a force transmitted to the belt, in a case where the excessive load detector detects that the excessive load will be applied to the drive wheel,
- wherein the excessive load detector detects that the excessive load will be applied to the drive wheel, based on the detected change in the rotational speed of the driving power transmission system from the traveling driving power source to the drive wheel exceeding a predetermined change threshold.
A utility vehicle comprising:
- a traveling driving power source which generates rotational driving power for driving a drive wheel;
- a continuously variable transmission including an input shaft to which the rotational driving power transmitted from the traveling driving power source is input, an output shaft which outputs the rotational driving power toward the drive wheel, a drive pulley provided at the input shaft, a driven pulley provided at the output shaft, and a belt wrapped around the drive pulley and the driven pulley;
- an excessive load detector which detects that an excessive load will be applied to the drive wheel;
- and
- a belt protection controller which suppresses a force transmitted to the belt, in a case where the excessive load detector detects that the excessive load will be applied to the drive wheel,
- wherein the excessive load detector determines that the excessive load will be applied to the drive wheel, in a case where the excessive load detector detects that a slip ratio of the drive wheel has changed from a value smaller than a predetermined threshold into a value larger than the predetermined threshold, and then has been reduced.
A utility vehicle comprising:
- a traveling driving power source which generates rotational driving power for driving a drive wheel;
- a continuously variable transmission including an input shaft to which the rotational driving power transmitted from the traveling driving power source is input, an output shaft which outputs the rotational driving power toward the drive wheel, a drive pulley provided at the input shaft, a driven pulley provided at the output shaft, and a belt wrapped around the drive pulley and the driven pulley;
- an excessive load detector which detects that an excessive load will be applied to the drive wheel;
- a belt protection controller which suppresses a force transmitted to the belt, in a case where the excessive load detector detects that the excessive load will be applied to the drive wheel;
- and
- a drive wheel lift-off detector which detects that the drive wheel is lifting-off a ground surface,
- wherein the excessive load detector determines that the excessive load will be applied to the drive wheel, in a case where the drive wheel lift-off detector detects that the drive wheel is lifting-off the ground surface.
Dependencies are inferred from the claim text.