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    • 2. 发明授权
    • System and method to reduce stall during deceleration fuel shut off
    • 减速时关闭减速器的系统和方法
    • US07572204B2
    • 2009-08-11
    • US11317397
    • 2005-12-22
    • Jeff DoeringDavid BidnerShane Elwart
    • Jeff DoeringDavid BidnerShane Elwart
    • B60W10/06B60W10/18
    • F02D41/021B60W10/04B60W2510/182B60W2540/12F02D41/0087F02D41/025F02D41/123F02D2200/0802F02D2200/501Y02T10/26Y10T477/80Y10T477/81Y10T477/817Y10T477/87Y10T477/877Y10T477/879
    • A method of controlling fuel injection in an engine of a vehicle having an anti-lock braking system comprises under conditions of degraded operation of an anti-lock braking system, restricting deactivation of the fuel injection during deceleration vehicle operating conditions. According to another aspect, the method comprises under conditions where the anti-lock braking system is functioning, disabling fuel injection during at least some deceleration operations; and under conditions of degraded operation of the anti-lock braking system, restricting deactivation of the fuel injection during deceleration vehicle operating conditions. By considering the functioning of an ABS, it is possible to deactivate fuel injection during some deceleration operations during one condition to realize fuel economy gains and disable the deactivation of fuel injection at another condition to reduce engine stalls. Thus, the deceleration fuel shut off strategy may be used aggressively for improved fuel economy.
    • 在具有防抱死制动系统的车辆的发动机中控制燃料喷射的方法包括在防抱死制动系统的运行恶化的条件下,限制在减速车辆操作条件期间燃料喷射的停止。 根据另一方面,该方法包括在防抱死制动系统工作的条件下,在至少一些减速操作期间禁止燃料喷射; 并且在防抱死制动系统的运行恶化的条件下,限制在减速车辆运行条件期间燃料喷射的停止。 通过考虑ABS的功能,可以在一个条件下的一些减速操作期间停用燃料喷射以实现燃料经济性增益,并且在另一条件下禁用燃料喷射的停用以减少发动机停止。 因此,可以积极地使用减速燃料切断策略来提高燃油经济性。