Platform Development for Small EVs 2015. 05. 04 Dr. Park, Jae-Keon (jkpark@iteng.co.kr) IT ENGINEERING Ltd. 1/11
Vehicle Statistics in Korea Vehicle registration increased by 33% in past ten years But average daily operation mileage per vehicle decreased by 27% during the same period of time (Korea; 43.8, USA; 52, UK; 44, Italy 40, France 37, Germany 35, Japan 27) Because of better public transportation system Increased number of vehicle per family High gas price Average daily mileage of private and government vehicle is shorter than 35Km and much shorter for small cars Average mileage of commercial vehicle total is 134Km but not goes up to 80Km for small commercial vehicle Private Cars 34.6 Km Government 34.2 Km Commercial Cars 133.8 Km 2/11
Vehicle Statistics in Korea National gross driving mileage is being recovered from big drop at Economic Crisis in 2008 Total Mileage Fuel efficiency in actual driving wasn t improved or even got worsen Probably because of heavier traffic Preferring bigger cars Small EVs with 100Km mileage per full battery charge seem acceptable for private 2 nd car, government purpose and small delivery service vehicles 3/11
Mostly, big players are focusing on higher performing and luxury EVs for their marketing purpose and bigger financial return in limited sales volume and tax payer s money is being spent for rich man s toy or early adapter s item Therefore, government support and involvement need to be made to provide more practical small EVs in cheaper price into market. Korean government is supporting the development of practical small EV platform to be shared among EV players and invite new EV players into market A-seg. front wheeler platform for passenger cars was developed A-seg. rear wheeler platform is to be developed for truck & van variants 4/11
I. MEV 개발현황 Development Strategy Optimized engineering for small or medium production targeting 3,000 unit per year for its minimum economic volume EV objective platform with high standard crashworthiness & safety performance Engineering for minimum fixed asset investment (USD 60 Mil. or less) Project led by engineering company and 16 small & medium enterprises in consortium for part supply and cooperative development USD 25 mil. (USD 18 mil from Korean Government) invested during 24 months (2012. 6~2014. 5) 5/11
Even though exterior dimension is in A-segment category, bigger cabin space equivalent to B-segment could be achieved due to EV objective development Max speed: 140Km/h, 0 to 100Km/h: 10 sec NCAP 4 star or better crashworthiness & safety performance Package Layout 1595 0 ±705 0 1280 ±325 390 2085 ±300 400 2520 ±698-15 8 16.5 840-325 750 805 3 1 1620 21 620 460-325 356 80 BPA 374 170 3595 2520 164 0 ±30 0 90 43 455 6/11
High efficiency all-in-one Electric Power Train system (Motor+PCU+LDC+Reducer) Motor - 96.6% efficiency - 69 kw / 36 kw - 210Nm,10,000 rpm - Power Density : 1.36 kw/kg - Weight : 44 Kg PCU - 98.6% Efficiency (Max) - 8 khz Switching Frequency Fully water and EMC/EMI proven high/low voltage and battery system OBC(Onboard Charger) Charging Port Moto & Inverter CRFM Driving Gearbox VCU W/Harness BAT Pack Ass y 7/11
EV objective body structure adapting the concept of space frame + monocoque and plastic skin on purpose to minimize total manufacturing cost EV component development ESC, EPS, E-Comp, OBC etc. Aluminum chassis component for weigh reduction 전동 Compressor & 공조 System Front Seat & Seat Head Liner Belt Tie-Bat(CCB) Rear Seat & Seat Belt Brake System & Front Pedal Suspension Rear Suspension HVAC ( 공조 ) EPT Mount Parking System Instrument Panel Door Trim CTR Consol ESC 8/11
Assembly Sequence [ BIW ] [ Plastic Skin ] [ EPT & Chassis ] [ Battery System ] [ Interior & Others ] Proto Vehicles Ready to Test [ Inspection ] 9/11
Business Model New EV manufacturing company to be formed in cooperation with suppliers and investors Starting with small passenger car, truck and van model in 2017, personal mobility technology for future to be pursued Not only EV models but also platform or sub system shall be provided to other EV business starters and in this case, engineering service also can be provided 10/11
Thank You For Your Attention! 11/11