Invention Grant
US08718884B2 System and method for correction of vehicle speed lag in a continuously variable transmission (CVT) and associated vehicle
有权
用于校正无级变速器(CVT)和相关车辆中的车辆速度滞后的系统和方法
- Patent Title: System and method for correction of vehicle speed lag in a continuously variable transmission (CVT) and associated vehicle
- Patent Title (中): 用于校正无级变速器(CVT)和相关车辆中的车辆速度滞后的系统和方法
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Application No.: US13220977Application Date: 2011-08-30
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Publication No.: US08718884B2Publication Date: 2014-05-06
- Inventor: Yanming Hou
- Applicant: Yanming Hou
- Applicant Address: US PA New Holland
- Assignee: CNH Industrial America LLC
- Current Assignee: CNH Industrial America LLC
- Current Assignee Address: US PA New Holland
- Agent Sue C. Watson
- Main IPC: B60W10/06
- IPC: B60W10/06

Abstract:
A method and associated system for compensation of vehicle speed lag resulting from changing load conditions in a continuously variable transmission (CVT) vehicle includes detecting and measuring true engine torque resulting from load changes placed on the vehicle engine. A true engine speed droop is calculated from the true engine torque. A compensated engine speed signal is generated based on the calculated true engine speed droop and is applied to the engine to produce a true engine speed that corresponds to a target engine speed at the load condition corrected for true engine speed droop.
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