混合動(dòng)力汽車發(fā)動(dòng)機(jī)啟停工況扭振自適應(yīng)模糊控制

陳龍 陶磊

摘要：混合動(dòng)力汽車（hybrid electric vehicle， HEV）發(fā)動(dòng)機(jī)啟停過程伴隨的轉(zhuǎn)矩脈動(dòng)，易誘發(fā)車輛傳動(dòng)系扭振，導(dǎo)致車輛動(dòng)力不平順。為解決上述問題，提出并驗(yàn)證基于電磁阻尼自適應(yīng)模糊控制的傳動(dòng)系扭振主動(dòng)控制方法。建立行星混聯(lián)式混合動(dòng)力汽車發(fā)動(dòng)機(jī)啟停工況動(dòng)力學(xué)仿真模型和發(fā)動(dòng)機(jī)啟停控制邏輯，提出發(fā)動(dòng)機(jī)啟停扭振自適應(yīng)模糊控制策略，開展2種運(yùn)行狀態(tài)下發(fā)動(dòng)機(jī)啟停工況仿真，對(duì)比分析無控制和自適應(yīng)模糊控制下傳動(dòng)系扭轉(zhuǎn)振動(dòng)響應(yīng)曲線。結(jié)果表明，自適應(yīng)模糊控制相比無控制狀態(tài)：定置停車時(shí)發(fā)動(dòng)機(jī)啟動(dòng)和停機(jī)工況扭振平均衰減率分別為23.8%和30.1%，車輛行進(jìn)間發(fā)動(dòng)機(jī)啟動(dòng)和停機(jī)工況扭振平均衰減率分別為12.1%和23.6%。該方法可有效衰減發(fā)動(dòng)機(jī)啟停工況傳動(dòng)系扭轉(zhuǎn)振動(dòng)，提升混合動(dòng)力汽車發(fā)動(dòng)機(jī)啟停工況NVH（noise， vibration， and harshness）性能。

關(guān)鍵詞：行星混聯(lián)傳動(dòng)系；啟停工況；扭轉(zhuǎn)振動(dòng)；主動(dòng)控制；自適應(yīng)模糊控制

中圖分類號(hào)：TH113.2???????? ?文獻(xiàn)標(biāo)志碼：A???????? 文章編號(hào)：1000-582X（2024）01-104-11

Adaptive fuzzy control of torsional vibration of hybrid electric vehicle engine under start-stop condition

CHEN Long1，2， TAO lei1

（1. College of Mechanical and Vehicle Engineering， Taiyuan University of Technology， Taiyuan 030024， P. R. China; 2. State Key Laboratory of Automotive Simulation and Control， Jilin University， Changchun 130025， P. R. China）

Abstract： The starting and stopping process of a hybrid electric vehicle engine often results in torque ripple， leading to torsional vibrations in the vehicles powertrain system and causing irregular vehicle power delivery. To solve these problems， an active control method for torsional vibrations based on active control of electromagnetic damping torque of the motor is proposed. Firstly， a dynamic simulation model and engine start-stop control logic under engine start-stop condition is established. Additionally， an adaptive fuzzy control strategy for engine start-stop torsional vibration is proposed. Finally， the simulation model is used to simulate the engine starting and stopping conditions under two driving conditions of the vehicle. The torsional vibration response curves of the driveline under the proposed control method and without any control are compared and analyzed. The results show that the average torsional vibration attenuation rates achieved by the proposed method are 23.8% and 30.1%， respectively， during stationary stop engine conditions， compared to the uncontrolled state. Moreover， the average attenuation rate of torsional vibration under the starting-stopping conditions during vehicle travel is 12.1% and 23.6%， respectively. This proposed method effectively attenuates the torsional vibrations of the driveline during engine starting and stopping conditions， thereby improving the NVH （noise， vibration， and harshness） performance of the hybrid electric vehicle during these operational states.

Keywords： planetary hybrid powertrains; start-stop conditions; torsional vibration; active control; adaptive fuzzy control

混合動(dòng)力汽車是一種將內(nèi)燃機(jī)技術(shù)和電驅(qū)動(dòng)技術(shù)相結(jié)合的集成創(chuàng)新成果，兼具了傳統(tǒng)內(nèi)燃機(jī)汽車長(zhǎng)續(xù)航、動(dòng)力特性和電動(dòng)汽車低排放的優(yōu)勢(shì)，成為當(dāng)前各大汽車廠商的研發(fā)熱點(diǎn)[1]。混合動(dòng)力汽車可根據(jù)實(shí)時(shí)功率需求動(dòng)態(tài)調(diào)整車輛的驅(qū)動(dòng)模式，但是驅(qū)動(dòng)模式的轉(zhuǎn)換易出現(xiàn)轉(zhuǎn)矩波動(dòng)，影響整車動(dòng)力傳動(dòng)的平順性[2]。且模式切換必然存在頻繁的發(fā)動(dòng)機(jī)啟停[3]，極易誘發(fā)混合動(dòng)力傳動(dòng)系統(tǒng)產(chǎn)生扭轉(zhuǎn)振動(dòng)問題，引發(fā)整車沖擊振動(dòng)，進(jìn)而影響車輛舒適性[4-5]。……