ELECTRIC POWER STEERING DEVICE

ELECTRIC POWER STEERING DEVICE

PROBLEM TO BE SOLVED: To provide an electric power steering device capable of using a cell of an auxiliary power source up to temperature near to heat resistant temperature.SOLUTION: An electric power steering device includes a motor 4 for generating steering assisting force, a main power source 7 f...

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Hauptverfasser: NAGASE SHIGEKI, YOSHIDA KAZUTADA
Format: Patent
Sprache:eng
Schlagworte:
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
MOTOR VEHICLES
PERFORMING OPERATIONS
TRAILERS
TRANSPORTING
VEHICLES IN GENERAL
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
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creator NAGASE SHIGEKI
YOSHIDA KAZUTADA
description PROBLEM TO BE SOLVED: To provide an electric power steering device capable of using a cell of an auxiliary power source up to temperature near to heat resistant temperature.SOLUTION: An electric power steering device includes a motor 4 for generating steering assisting force, a main power source 7 for supplying electric power to the motor 4, an auxiliary power source 8 for connecting a plurality of cells in series and/or parallel, a charge-discharge circuit 9 for charging the auxiliary power source 8 based on the main power source 7 and selectively constituting a first output state of supplying the electric power to the motor 4 only by the main power source 7 and a second output state of supplying the electric power to the motor 4 from the main power source 7 and the auxiliary power source 8, a circuit 5 for driving the motor 4, temperature sensors 12 installed in the plurality of respective cells of the auxiliary power source and detecting the temperature of the respective cells, and a control circuit 6 for selecting the output state of the charge-discharge circuit 9 in response to the required steering assisting force and restricting charge-discharge on the auxiliary power source 8 when at least one of the temperatures detected by the respective temperature sensors 12 reaches a predetermined upper limit threshold value.
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subjects LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
MOTOR VEHICLES
PERFORMING OPERATIONS
TRAILERS
TRANSPORTING
VEHICLES IN GENERAL
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
title ELECTRIC POWER STEERING DEVICE
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