Electrical vacuum pump controlling device for e.g. hybrid vehicle, has controlling units designed such that switches control interruption and/or formation of connection between electrical energy source and vacuum pump

摘要

The device has an electrical energy source (2) connected with an electrical vacuum pump (1) through one of switches (4) of two switches (4, 6). A set of controlling units (3, 5) is designed such that the switches control an interruption and/or a formation of a connection between the electrical energy source and the electrical vacuum pump. The electrical vacuum pump is connected with a ground and/or positive pole of the electrical energy source through another switch. The controlling units are connected with a sensor (7) for sensing low pressure.