发动机怠速声品质优化方法、系统以及发动机

• Format: Patent
• Language: Chinese
• Published: 17.09.2024
• Subjects: MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES; MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

本发明公开了一种发动机怠速声品质优化方法、系统以及发动机，方法包括获取发动机的多个噪声数据样本，并基于噪声数据样本确定声品质客观心理学参量以及声品质主观评价等级分数；根据声品质客观心理学参量以及声品质主观评价等级分数确定线性回归模型；建立发动机的喷射参数与声品质客观心理学参量的预测模型；基于线性回归模型以及预测模型建立喷射参数以及声品质主观评价等级分数之间的传递函数；求解传递函数，得到发动机的最优喷射参数。本发明通过最优化发动机的喷射参数来改变发动机的燃烧状态，解决了现有技术无法从根源上对发动机的声品质进行优化的技术问题，实现了从根源上优化发动机的声品质的技术效果，提高了产品的竞争力。 The invention discloses an engine idling sound quality optimization method and system and an engine, and the method comprises the steps: obtaining a plurality of noise data samples of the engine, and determining sound quality objective psychological parameters and sound quality subjective evaluation grade scores based on the noise data samples; determining a linear regression model according to the sound quality objective psychological parameters and the sound quality subjective evaluation grade score; establishing a prediction model of injection parameters and sound quality objective psychological parameters of the engine; establishing a transfer function between the injection parameters and the sound quality subject