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US 4,736,301 AGranted
Control device and method in continuously variable transmission system for vehicle
AssigneeToyota Jidosha Kabushiki Kaisha
InventorAkinori Osanai
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AssigneeToyota Jidosha Kabushiki Kaisha
InventorAkinori Osanai
Estimating the term…
In a control device in continuously variable transmission system for a vehicle, wherein a belt is racked across a pulley on the input side and a pulley on the output side, an engine power is transmitted through this belt, and an urging force of the belt by one of the pulleys is controlled by a line pressure of a hydraulic cylinder of the pulley, an engine output torque is determined from an engine rotational speed, an intake throttle opening or an intake air flowrate per unit rotation of the engine and engine operation parameters other than said data, and the line pressure is regulated in relation to the so determined value to obtain the proper line pressure as accurately commensurate to the actual output torque of the engine, so that the fuel consumption rate can be lowered to the maximum, avoiding the slips of the belt.
A control device in a continuously variable transmission system for a vehicle, wherein a belt is racked across a pulley on the input side and a pulley on the output side, an engine power is transmitted through said belt, and an urging force of said belt by one of said pulleys is controlled by a line pressure of a hydraulic cylinder of said pulley, comprising processor means including:
a control method in a continuously variable transmission system for a vehicle, wherein a belt is racked across a pulley on the input side and a pulley on the output side, an engine power is transmitted through said belt, and an urging force of said belt by one of said pulleys is controlled by a line pressure of a hydraulic cylinder of said pulley, comprising the steps of:
A control method in a continuously variable transmission system for a vehicle, wherein a belt is racked across a pulley on the input side and a pulley on the output side, an engine power is transmitted through said belt, and an urging force of said belt by one of said pulleys is controlled by a line pressure of a hydraulic cylinder of said pulley, comprising the steps of:
Dependencies are inferred from the claim text.