Measuring and testing – Simulating operating condition – Marine
Reexamination Certificate
2005-07-12
2005-07-12
McCall, Eric S. (Department: 2855)
Measuring and testing
Simulating operating condition
Marine
Reexamination Certificate
active
06915681
ABSTRACT:
An ECT-ECU includes a circuit that calculates an oil temperature threshold on the basis of a signal input from one of an engine coolant temperature sensor, an engine intake air temperature sensor, and an AT hydraulic fluid temperature sensor if a signal for starting an engine of a vehicle is input thereto from an ignition switch, a circuit that detects an oil temperature on the basis of a signal input from the AT hydraulic fluid temperature sensor at intervals of a predetermined sampling time while the vehicle is running, and a circuit that controls an automatic transmission to prohibit a gear shift from fourth speed to fifth speed if a detected oil temperature is lower than the oil temperature threshold.
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Ando Masahiko
Gotou Takeshi
Kaigawa Masato
Kobiki Yasushi
Takebayashi Noritaka
Aisin AW Co., LTD
McCall Eric S.
Toyota Jidosha & Kabushiki Kaisha
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