| 摘要 |
PURPOSE:To make a control response speed constant till the deviation becomes an allowable value, by turning on the first control signal for the start of control till the deviation becomes an allowable value if the oil temperature is lower than a prescribed value. CONSTITUTION:The oil temperature of the operating oil, the displacement of an accelerator pedal, the water temperature, and the air temperature in a hydraulic pump device 3 are detected by detectors and are inputted to a central operation circit 5B by a command signal from the central operation circuit 5B. Data required for calculations in the circuit 5B are stored in a memory 5E. If the operating oil is low-temperature, the response of an oil pressure control system is slow; and therefore, a difference between the temperature of the operating oil at the time, when a switch of a control circuit is turned on, and the oil temperature set and stored in the memory 5E is obtained, and a microcomputer 5 sends continuously a control signal, which is turned on still, to an electrical wire 5k till the difference becomes a set value if the difference is negative and is larger than the set value. |
