Vehicle electric booster steering system controller
Title：
Vehicle electric booster steering system controller
Application Number：
 200610113709
Application Date：
 2006/10/13
Announcement Date：
 2007/03/28
Pub. Date：
Publication Number：
 1937397
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 H02P 7/00, H02P 8/14, G05B 15/02, B62D 5/04
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
Key Words：
 Vehicle, electric booster, steering system, controller
Abstract：
 The force-assistance executor is a DC permanent magnet motor with brushes and supplies by 12 V battery system. The controller consists of micro-controller module, signal processing module, output control module, power supply module, relay with its driver module, H bridge module, grid driver module and motor current testing module. The characteristic of this invention is that the H bridge module adopts two P-trench type power electronic devices and two N-trench types. The source electrodes of the former lead to the positive terminal of the battery while the latter lead to the negative. The drain electrodes of each group of P type electronic devices are jointed to the drains of the same group of N type. Thus, the power supply module of the grid driver module needs no voltage-raising module. This simplifies the structure of the controller, lowers its cost and raises its reliability.
Claim：
Priority：
PCT：
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