Mild Hybrid (MHEV, 48-volt Hybrid)
A mild hybrid uses a small electric motor-generator, often 48 volts, to assist the engine and recover energy, but cannot drive on electricity alone.
What is Mild Hybrid (MHEV, 48-volt Hybrid)?
The belt starter generator replaces the alternator. It improves start-stop smoothness. It recovers braking energy into a small battery. Mild hybrids can coast with the engine off and restart it smoothly. They need a DC-DC converter to supply the normal 12-volt system.
How it works
The motor-generator adds torque and recharges the battery.
Why it matters for your car
The 48-volt battery and generator can fail like other components. Fuel savings are smaller than in full hybrids.
Other terms
- Antifreeze (Coolant Concentrate)
- Battery Registration (Battery Coding)
- Boot Floor (Load Floor)
- Crosswind Assist
- Diesel Knock (Combustion Knock)
- Dual-Zone Climate Control
- European Accident Statement
- International Driving Permit (IDP)
- Locking Wheel Nuts (Wheel Locks)
- Nose Weight (Tow Ball Load)
- OAT Coolant (Organic Acid Technology)
- Oil Consumption
- Power Steering Fluid
- Rear Diffuser
- Strut Top Mount
- Threshold Braking
- Turning Circle
- Tyre Puncture
- Wheel Cylinder
- Zipper Merge