ABSTRACT
This paper presents the technical approach used to design and develop the powerplant for the Honda Insight, a new motor assist hybrid vehicle with an overall development objective of just half the fuel consumption of the current Civic over a wide range of driving conditions. Fuel consumption of 35km/L (Japanese 10-15 mode), and 3.4L/100km (98/69/EC) was realized. To achieve this, a new Integrated Motor Assist (IMA) hybrid power plant system was developed, incorporating many new technologies for packaging and integrating the motor assist system and for improving engine thermal efficiency. This was developed in combination with a new lightweight aluminum body with low aerodynamic resistance. Environmental performance goals also included the simultaneous achievement of low emissions (half the Japanese year 2000 standards, and half the EU2000 standards), high efficiency, and recyclability. Full consideration was also given to key consumer attributes, including crash safety performance, handling, and driving performance.
1. INTRODUCTION
To reduce the automobile’s impact on society and the environment requires that it be increasingly cleaner and more energy efficient. The issues of energy conservation, ambient air quality, and reduction in CO2 emissions are increasing raised as global environmental concerns. One solution for dealing with these issues is the hybrid automobile. Honda has developed and introduced to several major markets worldwide the Insight, a new generation of vehicle design. The Insight combines a hybrid power train with advanced body technology features to meet an overall goal of achieving the highest fuel economy practical.
The hybrid power train is a motor assist parallel configuration, termed IMA for ‘Integrated Motor Assist’. This power train combines a highly efficient electric motor with a new small displacement VTEC engine, a lightweight aluminum body, and improved aerodynamics to realize 3.4L/100km (CO2:80g/km) on 98/69/EC fuel economy. Low emissions performance was also targeted with emission levels achieving the EU2000.
In addition to recapturing deceleration energy, the integrated motor provides high torque assist during typical urban driving accelerations. This allows a significant reduction in engine displacement and higher engine efficiency. Sustained hill climbing performance and high speed cruising capability are assured by a power-toweight ratio of approximately 56kW per metric ton. New engine technology includes the application of a new VTEC (Variable valve Timing and valve lift, Electronic Control) cylinder head design promoting high efficiency and fast catalyst activation, and a new lean NOx catalyst system which promotes lean burn combustion and a reduction in emissions. Extensive friction and weight reducing features are also applied.




摘要
本論文介紹了用于設(shè)計(jì)和開發(fā)Honda Insight發(fā)動(dòng)機(jī)的技術(shù)方法，一種新的發(fā)動(dòng)機(jī)輔助混合動(dòng)力汽車，其總開發(fā)目標(biāo)是在廣泛的行駛條件下達(dá)到當(dāng)今Civic消耗量的一半，實(shí)現(xiàn)35km/L（日本10-15模式），3.4L/km（98/69/EC）的消耗量。為了達(dá)到這個(gè)目標(biāo)，加入了許多用于包裝和集成發(fā)動(dòng)機(jī)輔助系統(tǒng)以及改善發(fā)動(dòng)機(jī)效率的新技術(shù)，開發(fā)了一種新的集成式發(fā)動(dòng)機(jī)輔助混合動(dòng)力發(fā)動(dòng)機(jī)系統(tǒng)。這是結(jié)合了一種低空氣阻力的新型輕稆車身開發(fā)的。環(huán)境性能目標(biāo)也包括了低排放（日本2000年標(biāo)準(zhǔn)的一半，EU2000標(biāo)準(zhǔn)的一半），高效率和楊回收性。對(duì)消費(fèi)的關(guān)鍵特性全面考慮，包括碰撞安全性能，操縱性和運(yùn)行特性。
1． 緒論
為減小汽車對(duì)社會(huì)和環(huán)境的沖擊要求其更干凈并且能量效率更高更節(jié)能，空氣質(zhì)量更好。降低CO2排放問題作為全球環(huán)境焦點(diǎn)提出，解決這些問題的方法之一就是混合動(dòng)力汽車。Honda已開發(fā)并向遍及全球的幾大市場輸入Insight，新一代車輛設(shè)計(jì)。 Insight將混合動(dòng)力系與先進(jìn)的車身技術(shù)特性相結(jié)合以符合取得實(shí)際的最高燃油經(jīng)濟(jì)性的總目標(biāo)。
混合動(dòng)力系是發(fā)動(dòng)機(jī)的輔助并聯(lián)平行結(jié)構(gòu)，把IMA叫做集成式發(fā)動(dòng)機(jī)輔助。此動(dòng)力系將把一個(gè)高效電動(dòng)機(jī)與一個(gè)新型小排量VTEC發(fā)動(dòng)機(jī)結(jié)合起來，很輕的鋁車身，改良的空氣動(dòng)力學(xué)以實(shí)現(xiàn)3.4L/100km(CO2：80g/km)98/69/EC燃油經(jīng)濟(jì)性。低排放性能也已達(dá)到EU排放水平為目標(biāo)。
除減速能的重用之外，集成式發(fā)動(dòng)機(jī)在典型的市區(qū)行駛加速時(shí)提供大助力扭矩，顯著地減小了發(fā)動(dòng)機(jī)拜師，提高了發(fā)動(dòng)機(jī)效率。接近56kW每噸的功率/質(zhì)量比保證了穩(wěn)定的爬坡能力和高速的常速行駛能力。新發(fā)動(dòng)機(jī)技術(shù)包括促進(jìn)高效快速的催化劑活性化的一種新VTEC（電子控制可變配氣相位和氣門升程）缸蓋設(shè)計(jì)，促進(jìn)稀薄燃燒能降低排放的新型稀NOx催化轉(zhuǎn)化器，廣泛的減摩及減重特色也用于其中。