BMW Spectacular eco-studies from BMW
22.12.2010
D he started with two BMW 1602 electric E7s the Bavarian Motor Works put on keel for test purposes in 1969. They were based on the BMW 02 series and were equipped with an electric motor and twelve 12 volt lead batteries connected in series with a capacity of 12.6 kWh. The first electric car from BMW was even used as a support vehicle for the marathon runners at the 1972 Olympic Games in Munich. The distance of 42.195 kilometers was not really a problem for the early Stromer: The maximum range was 60 kilometers.
Would you like more facts about the BMW 1602 Elektro and all other eco-test vehicles from BMW? We will show you all BMW electric, hybrid, hydrogen and natural gas research vehicles.
BMW 1602 Electric E7 (1969)
Electric car as a test vehicle based on the BMW 02 series.
Drive: electric motor (direct current shunt motor)
Power: 12 kW (continuous power); 32 kW (peak power)
Top speed: approx. 90 km /h
Acceleration: 0-50 km /h: 10.0 seconds
Battery: twelve 12 V lead batteries (88Ah) connected in series with a total weight of 350 kg. The battery set could be completely replaced.
Capacity: 12.6 kWh
Battery life: approx. 2,500 km
Range: 60 km (at a constant 50 km /H); 30 km in city traffic
Empty weight: 1,330 kg (additional weight to conventional BMW 1602: 350 kg)
BMW LS Electric E29 (1975)
This vehicle was provided by BMW never before the public. A discarded BMW LS served as the basis. In contrast to the BMW 1602 Elektro, however, a different type of battery was used here. Another electric motor was also used.
Drive: Electric motor (direct current series motor with additional shunt winding)
Output: 8 kW (continuous output)
Top speed: approx. 65 km /h
Acceleration: 0-50 km /h: 11.4 seconds
Battery: ten lead /acid traction batteries (6 V) with a total weight of 318 kg.
Capacity: 10.8 kWh
Range: approx. 69 km (at a constant 50 km /h); approx. 32 km in city traffic
Empty weight: 1,076 kg
BMW 3 series electric E30 (1987)
This test vehicle, of which eight prototypes were built, was based on the all-wheel drive BMW 325iX. The BMW 3 Series Electric, however, only had front-wheel drive.
Drive: electric motor(DC shunt motor)
Power: 17 kW (continuous power)
Top speed: approx. 100 km /h
Acceleration: 0-50 km /h: 9.0 seconds
Battery: High-energy battery made up of 360 sodium /sulfur cells with a total weight of 265 kg.
Capacity: 22 kWh
Range: approx. 150 km in city traffic
Empty weight: n /a
BMW E1 (1991/1993)
After the positive experience with the ABB high-energy battery in the BMW 3 Series Electric, BMW wanted to test the practical advantages and disadvantages of electric drive in everyday life with the thoroughbred E1 electric car. Two years after the premiere of the E1, BMW presented the second development stage of the E1 at the IAA 1993, which operated internally under the code Z15.
The BMW E1 was not only available in a purely electric version, but also a hybrid model and a variant with a combustion engine. A total of five test vehicles of the second generation (Z15) were built.
Drive: Permanently excited synchronous machine
Output: 32 kW (continuous output)
max. Torque: 150 Nm
Top speed: 120 km /h (Z15: 125 km /h)
Acceleration: 0-50 km /h: 6.0 seconds; 0-80 km /h: 18 seconds (Z15: 5.6 /12.7 seconds)
Battery: High-energy battery (120 V) made up of 360 sodium /sulfur cells with a total weight of 200 kg; (Z15: high-energy battery based on sodium-nickel chloride)
Battery life (Z15): over 100,000 km
Capacity: 19.2 kWh (Z15: 19 kWh)
Range: approx. 150 km in city traffic (Z15: in city traffic: 160 km; at a constant 50 km /h: approx. 265 km)
Empty weight: 900 kg
BMW 3 Series Electric E36 (1992)
After the new sodium-nickel chloride batteries had already been used in the BMW E1, BMW also installed them in the test vehicles based on the BMW 3 Series of the E36 series.
1. Generation BMW 3 series electric E36 (1992-1995)
Drive: electric motor (permanently excited synchronous machine)
Power: 32 kW (continuous power)
Max. Torque: 150 Nm
Top speed: 128 km /h
Acceleration: 0-50 km /h: approx. 8.0 seconds; 0-80 km /h: approx. 18 seconds
Battery: high-energy battery based on sodium-nickel chloride with a total weight of 260 kg.
Battery life: over 100,000 km
Capacity: 21.7 kWh
Range: approx. 120 km in city traffic
Empty weight: 1,325 kg
2. Generation BMW electric (1995-1997)
Drive: electric motor (permanently excited synchronous machine)
Power: 45 kW (peak power); 32 kW (continuous output)
max. Torque: 210 Nm
Top speed: 135 km /h
Acceleration: 0-50 km /h: approx. 6.0 seconds; 0-80 km /h: approx. 12 seconds
Battery: Zebra high-energy battery based on sodium-nickel chloride with a total weight of 350 kg.
Service lifeBattery: 160,000 - 180,000 km
Capacity: 29 kWh
Range: approx. 155 km in city traffic
Empty weight: 1,500 kg
Hydrogen vehicles from BMW
The first vehicle with a hydrogen combustion engine based on a BMW 520 was developed at the end of the 1970s by the German Aerospace Research and Research Institute (DLR). Hardly anything remained of the original trunk of the BMW 5 Series. Because the hydrogen tank with the fuel kept at minus 250 degrees took up almost the entire luggage compartment. In contrast to the following research vehicles, this BMW 520 was not equipped with a bivalent drive, but ran exclusively on hydrogen (H2).
Project H2BVplus
Recently, BMW caused another sensation when BMW engineers presented the 'H2BVplus' project in March 2009 in collaboration with researchers from Graz and Vienna. The focus here is on a monovalent hydrogen engine with diesel-typical geometry and H2 high-pressure direct injection technology. The efficiency of this engine should be around 42 percent on the level of the best turbo diesel engines.
All photos and further information - including other hydrogen vehicles from BMW and BMW natural gas vehicles - can be found You in our great slideshow.
