摘要:
A device is provided for automatically indicating an insufficient level of oil in a motor-vehicle gearbox of the automatic type. The device includes an oil level sensing system controlling an associated indicator. To prevent spurious operation of the indicator, the device is provided with a number of sensors arranged to ensure that the oil-level sensing system can only effect control of the indicator under certain predetermined conditions including that the vehicle is stationary and on the level, and that the engine is idling. An oil temperature sensor is also provided either to prevent operation of the indictor if the oil temperature is outside a predetermined range, or to effect a temperature dependent adjustment of the acceptable value of oil level.