Invention Grant
- Patent Title: Multi-pulse spark ignition direct injection torque based system
- Patent Title (中): 多脉冲火花点火直接注射力矩系统
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Application No.: US12436362Application Date: 2009-05-06
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Publication No.: US07885756B2Publication Date: 2011-02-08
- Inventor: Michael Livshiz , Jeffrey M. Kaiser , Christopher R. Graham , Christopher E. Whitney , Robert Francis Semrau , Brian D Francis
- Applicant: Michael Livshiz , Jeffrey M. Kaiser , Christopher R. Graham , Christopher E. Whitney , Robert Francis Semrau , Brian D Francis
- Assignee: GM Global Technologies Operations, Inc.
- Current Assignee: GM Global Technologies Operations, Inc.
- Main IPC: B60T7/12
- IPC: B60T7/12 ; F02B3/00

Abstract:
A control system is provided and includes a catalyst module that generates a multi-mode enable signal based on a catalyst light off enable signal. A transition control module controls transitions between a single pulse mode and multi-pulse mode based on the multi-mode enable signal. The transition control module receives a first torque signal and generates a second torque signal based on the first torque signal. The engine torque control module generates an air per cylinder signal, a throttle area signal, and a spark timing signal based on the second torque signal. The single pulse mode is associated with a single fuel injection pulse per combustion cycle. The multi-pulse mode is associated with multiple fuel injection pulses per combustion cycle.
Public/Granted literature
- US20100057329A1 MULTI-PULSE SPARK IGNITION DIRECT INJECTION TORQUE BASED SYSTEM Public/Granted day:2010-03-04
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