发明名称 |
METHOD FOR OPERATING A HYDRAULIC SYSTEM OF AN AUTOMATIC TRANSMISSION |
摘要 |
A method for operating a hydraulic system of an automatic transmission, in particular a dual clutch transmission of a vehicle, includes analyzing by a provisioning module of a control device of the automatic transmission whether an intention of a driver to initiate operation of the vehicle exists, wherein the automatic transmission includes a high-pressure circuit which includes a pressure accumulator, at least one clutch, actuators and a charge pump, and when the intention to initiate operation of the vehicle and a requirement to charge the pressure accumulator exist, activating a partial charging operation in which the charge pump is controlled with a charging rotational speed for increasing an actual accumulator pressure of the accumulator to a predetermined switch-off pressure value at which the automatic transmission is ready for operation for a defined period of time. |
申请公布号 |
US2015247571(A1) |
申请公布日期 |
2015.09.03 |
申请号 |
US201514632611 |
申请日期 |
2015.02.26 |
申请人 |
AUDI AG |
发明人 |
AMMLER STEFAN |
分类号 |
F16H61/00;F16H61/688 |
主分类号 |
F16H61/00 |
代理机构 |
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代理人 |
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主权项 |
1. A method for operating a hydraulic system of an automatic transmission, in particular a dual clutch transmission of a vehicle, comprising:
analyzing by a provisioning module of a control device of the automatic transmission whether an intention of a driver to initiate operation of the vehicle exists, said automatic transmission comprising a high-pressure circuit which comprises a pressure accumulator, at least one clutch, actuators and a charge pump; and when the intention to initiate operation of the vehicle and a requirement to charge the pressure accumulator exist, activating a partial charging operation in which the charge pump is controlled with a charging rotational speed for increasing an actual accumulator pressure of the accumulator to a predetermined switch-off pressure value at which the automatic transmission is ready for operation for a defined period of time. |
地址 |
INGOLSTADT DE |