Protection device activation controller
US7654564B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 18, 2007 |
| Grant date | Feb 2, 2010 |
| Priority date | — |
| Expiry date | Apr 30, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2021/01322
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An occupant protection device controller includes a main sensor, a safing sensor, a main control circuit, a sub control circuit, and a trigger signal output circuit. Whereas the main control circuit has a CPU, and the sub control circuit has no CPU. The main control circuit determines whether to output a main control signal based on both an output of the main sensor and an output of the safing sensor. The sub control circuit has a comparator and determines whether to output a sub control signal based on a comparison of the output of the main sensor with a threshold value. The trigger signal output circuit outputs a trigger signal for activating an occupant protection device upon receipt of both the main control signal and the sub control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.