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US 6,186,924 B1Granted
Automatic transmission controller
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorToshio Ohtsuka
Life of this patent
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Abstract
To minimize a delay time of the start of the control of a solenoid valve for changing gear ratios of a transmission, the need for a speed change is judged and when the speed change is needed, a control cycle of the solenoid valve is made longer than the control cycle in the steady state.
Claims2
An automatic transmission controller comprising:
- judging means to judge a speed change requirement for speed change of a vehicle;
- and
- switching means to switch a control cycle of a solenoid valve of a transmission;
- characterized in that when the judging means judges that the speed change is required, the switching means sets a control cycle of the solenoid valve to a value longer than the control cycle of a steady state.
1 more element
Dependencies are inferred from the claim text.