BMW Hybrid Cars in Details

Motor vehicles with high-voltage systems are equipped with components that operate with voltages in excess of 60 volt direct current voltage or 25 volt AC voltage. The components in these vehicles require, in part, high electrical power. The high-voltage electrical system in hybrid cars operates with direct current voltages of up to 650 volt and must make available high electrical energy.

Following are components that installed in the hybrid car :

• Gearbox with electric motors/generators with full hybrid
• Power and control electronics
• High-voltage energy storage device
• Internal combustion engine
• High-voltage cables

All movements in the human body are triggered by electrical control mechanisms. All muscle reactions-such as the heartbeat for example - are controlled by electrical stimuli. These electrical stimuli propagate in the body via nerve tracts - similar to current in electrical circuits.

Current can flow through the body on contact with components under high voltage (live). Reversible disturbance of the heartbeat can occur at direct currents as low as approx. 30 mA depending on how long the current flows. Serious internal burn injuries can additionally occur at even higher currents flowing through the body, possibly resulting in ventricular fibrillation. There is also a risk of arcing if the two poles of high-voltage system are short-circuited. This can cause serious external burn injuries and flash the eyes.