Methods and systems for improving boost response

• Main Authors: BATES KEVAN, KUECHLER PETER DOUGLAS, SABERWAL DEV, LESNIAK JUSTIN, LOSCH TREVOR, SIMON MICHAEL M S
• Format: Patent
• Language: Chinese; English
• Published: 10.05.2017
• Subjects: BLASTING; COMBUSTION ENGINES; CONTROLLING COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

Methods and systems for improving boost response are provided in the invention. Methods and systems are provided for improving boost response in a turbocharged engine. In one example, a method may include in response to a tip-out following a tip-in, when an exhaust catalyst temperature is within a threshold range, deactivating fuel injectors to the engine and increasing air flow to an exhaust turbine based on a desired increase in a turbine speed to maintain the turbine speed at or above a threshold speed. 本发明涉及用于改进增压响应的方法和系统。提供了用于改进涡轮增压发动机的增压响应的方法和系统。在个示例中，种方法包括响应于在踩加速器踏板之后的松加速器踏板，当排气催化剂温度处于阈值范围内时，停用至该发动机的燃料喷射器，并且基于期望涡轮机转速的增大使至排气涡轮机的气流增大以维持该涡轮机转速处于或高于阈值转速。