Vehicle control unit based on torque model

Abstract

The invention provides a vehicle control unit based on a torque model. The vehicle control unit comprises a torque requirement determination unit, an engine loss torque determination unit, an engine efficiency loss determination unit, an air throttle model selection unit, an air model selection unit, an air-fuel ratio model selection unit and an ignition advance angle determination unit. In addition, the vehicle control unit further comprises a matching calibration unit. According to the vehicle control unit based on the torque model, control on an engine torque can be realized based on an established model, and the driving requirement of a vehicle can be met.

Description

technical field [0001] The invention relates to a vehicle control system, in particular to a torque model-based vehicle controller. Background technique [0002] A conventional internal combustion engine combusts an air and fuel mixture within cylinders to drive pistons for generating drive torque. Air flow into the engine is regulated by a throttle, which adjusts the throttle area to increase or decrease air flow into the engine. When the throttle area increases, the air flow into the engine increases. The fuel control system then adjusts the rate at which fuel is injected to provide the desired mixture of air and fuel to the cylinders to achieve the desired torque output. [0003] Engine control systems are generally used to control engine output torque to achieve the desired torque, and torque-based control can be applied to internal combustion engines to achieve desired drive characteristics. The engine torque based control system interprets the vehicle's accelerator ...

AI Technical Summary

Problems solved by technology

[0004] The traditional engine control system controls the engine output torque is affected by many factors, and does not provide a quick response to the control signal or coordinate engine torque control among various devices that affect the engine output torque, so there are control defects and often cannot meet the demand torque

The defects caused by the above problems are especially obvious when applied to hybrid vehicles

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