Vehicle control apparatus
US9783170B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 8, 2015 |
| Grant date | Oct 10, 2017 |
| Priority date | — |
| Expiry date | Nov 4, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/19
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The vehicle control apparatus gives a control current to the electromagnetic control valve at a start of energization of the electromagnetic control valve as a start current value smaller by a first determined amount than an open/closed state change-over reference current value which is necessary for changing over a state of the electromagnetic valve and after the start of energization of the electromagnetic control valve, the control current gradually increases with a smaller increase inclination than an increase inclination of an increase control of the control current which gives priority to a control responsibility of the electromagnetic control valve and finishes a gradual increase of the control current applying to the electromagnetic control valve, when the control current exceeds a finish current value which is larger than the open/closed state change-over reference current value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.