Title:
車両用ブレーキブースタの真空ポンプの制御方法
Document Type and Number:
Japanese Patent JP2014522768
Kind Code:
A
Abstract:
An electric brake booster vacuum pump of a vehicle has a deactivation level determined according to a percentage of maximum available vacuum at the instant altitude of the vehicle. The activation level may be determined in the same way. The invention provides for earlier on-switching of a vacuum pump at altitude, while ensuring that the off-switching value is achievable at low atmospheric pressure.
Inventors:
Coulisse リディントン
Application Number:
JP2014517719A
Publication Date:
September 08, 2014
Filing Date:
June 28, 2012
Export Citation:
Assignee:
Jaguar Land Rover Limited Jaguar Land Rover Limited
International Classes:
B60T17/00
Foreign References:
| US20050178622A1 | 2005-08-18 |
Attorney, Agent or Firm:
Mutsumi Sameshima
Yasuo Tamura
Yasuo Tamura