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US 2019/0048997 A1Published application
Hydraulic control device
AssigneeHonda Motor Co., Ltd.
InventorMasamichi Harada
Life of this patent
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Abstract
In a control unit of a hydraulic control device, a temperature acquisition unit acquires a temperature of a driver and a temperature determination unit determines whether the temperature or a temperature at an approximate line of the temperature has reached a restriction start temperature. If the temperature determination unit determines that the temperature or the temperature has reached the restriction start temperature, a motor controller restricts a motor output.
Claims6
A hydraulic control device configured to supply oil to a hydraulic operation unit of a transmission from a pump driven by a motor, comprising:
- a motor driving unit configured to drive the pump by driving the motor;
- a temperature acquisition unit configured to acquire a temperature of the motor driving unit;
- a thermal deterioration degree calculation unit configured to calculate a thermal deterioration degree of the motor driving unit on a basis of the temperature;
- a restriction start temperature setting unit configured to set a restriction start temperature for restricting an output of the motor on a basis of the thermal deterioration degree;
- a temperature determination unit configured to determine whether the temperature has reached the restriction start temperature;
- and
- a motor controller configured to restrict the output of the motor through the motor driving unit if the temperature determination unit determines that the temperature has reached the restriction start temperature.
4 more elements
Dependencies are inferred from the claim text.