Invention Grant
- Patent Title: Controlling the fuel pressure in an injection system
- Patent Title (中): 控制注射系统中的燃油压力
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Application No.: US14764237Application Date: 2014-01-28
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Publication No.: US09587580B2Publication Date: 2017-03-07
- Inventor: Lars Hermann , Martin Friedrich , Christoph Benz , Oliver Schulz , Thomas Wieland , Roberto Scarfone
- Applicant: Robert Bosch GmbH
- Applicant Address: DE Stuttgart
- Assignee: Robert Bosch GmbH
- Current Assignee: Robert Bosch GmbH
- Current Assignee Address: DE Stuttgart
- Agency: Michael Best & Friedrich LLP
- Priority: DE102013201355 20130129
- International Application: PCT/EP2014/051568 WO 20140128
- International Announcement: WO2014/118140 WO 20140807
- Main IPC: F02D41/38
- IPC: F02D41/38 ; F02D41/12 ; B60W10/02 ; B60W10/06 ; B60W10/08 ; B60W20/00 ; B60W30/18

Abstract:
A method for controlling a pressure (32, 34) in an injection system (14) for an engine (12) of a vehicle (10) comprises the following steps: determining whether the vehicle (10) is decelerating; reducing the delivery rate of a high-pressure pump (16) that supplies fuel to the injection system (14); reducing the pressure in the injection system (14) to a standstill pressure (ps) by means of idle operation of the engine (12); estimating a standstill time (t1) at which the vehicle (10) comes to a standstill; and reducing the delivery rate of the high-pressure pump (16) before the standstill time (t1) is reached, such that the standstill pressure (ps) is attained in the injection system (14) at the standstill time (t1).
Public/Granted literature
- US20150369164A1 CONTROLLING THE FUEL PRESSURE IN AN INJECTION SYSTEM Public/Granted day:2015-12-24
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