What is the difference between HEV and PHEV in Toyota terms?

What is the difference between HEV and PHEV in Toyota terms?

• A. HEV cannot be plugged in and charges via the engine and braking; PHEV can be charged from an external source and typically offers more electric range.
• B. PHEV cannot be charged and uses only gasoline.
• C. HEV can be plugged in and charges via external source; PHEV cannot be plugged in.
• D. HEV has more electric range than PHEV.

Answer: (A)

The essential distinction here is how the battery is charged and how much driving you can do on electricity alone. A traditional Toyota hybrid (HEV) uses a small battery that is charged by the gasoline engine and regenerative braking. It cannot be plugged in, and electric power is used mainly to assist the gasoline engine to boost efficiency, not to run long distances on electric energy. A plug-in hybrid (PHEV) uses a larger battery that you can recharge by plugging into an external power source. This lets the vehicle run on electric power by itself for a certain distance before the gasoline engine takes over, delivering a meaningful electric range. After that range is used, it operates like a conventional hybrid. That’s why the statement describes the HEV as not being plug-in and recharged by engine and braking, while the PHEV can be plugged in and typically offers more electric range.

The essential distinction here is how the battery is charged and how much driving you can do on electricity alone. A traditional Toyota hybrid (HEV) uses a small battery that is charged by the gasoline engine and regenerative braking. It cannot be plugged in, and electric power is used mainly to assist the gasoline engine to boost efficiency, not to run long distances on electric energy.

A plug-in hybrid (PHEV) uses a larger battery that you can recharge by plugging into an external power source. This lets the vehicle run on electric power by itself for a certain distance before the gasoline engine takes over, delivering a meaningful electric range. After that range is used, it operates like a conventional hybrid.

That’s why the statement describes the HEV as not being plug-in and recharged by engine and braking, while the PHEV can be plugged in and typically offers more electric range.