Torque estimation in engine control

• Main Authors: SOLIMAN IHAB S, SHOST MARK A, DALEY JAMES J
• Format: Patent
• Language: Chinese; English
• Published: 05.02.2019
• Subjects: BLASTING; COMBUSTION ENGINES; CONTROLLING COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; IGNITION, OTHER THAN COMPRESSION IGNITION, FORINTERNAL-COMBUSTION ENGINES; LIGHTING; MEASURING; MECHANICAL ENGINEERING; PHYSICS; TESTING; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR; WEAPONS

In one aspect, a method is described. An operational engine torque is calculated. The engine is operated in a skip fire or firing level modulation manner to deliver the operational engine torque. A reference engine torque is calculated using a torque model. The torque model involves estimating torque at a working chamber level. The reference engine torque is compared to the calculated operationalengine torque to assess the accuracy of the operational engine torque calculation. Various embodiments of the present invention involve software, devices, systems and engine controllers that are related to one or more of the above operations. 在方面，描述了种方法。计算运行发动机扭矩。采用跳转点火或点火水平调制方式运行所述发动机从而递送所述运行发动机扭矩。使用扭矩模型来计算参考发动机扭矩。所述扭矩模型涉及在工作室级别上估计扭矩。将所述参考发动机扭矩与所计算的运行发动机扭矩进行比较从而评估所述运行发动机扭矩的计算的准确性。本发明的各个实施例涉及与上述操作中的项或多项相关的软件、设备、系统和发动机控制器。