Hybrid Cars in India: Strong vs Plug-in Hybrid
Hybrid cars are quickly gaining popularity in India due to their improved fuel efficiency and convenience. Recently, Renault introduced the Duster Strong Hybrid, while MG unveiled the Hector Tomahawk Plug-in Hybrid. Although both use a petrol engine and electric motors, their hybrid technologies differ significantly. If you're considering a hybrid car and unsure between a strong hybrid and a plug-in hybrid, here's a breakdown of their key distinctions:
What is a Strong Hybrid Powertrain? (Renault Duster Strong Hybrid)
A strong-hybrid vehicle combines a petrol engine with an electric motor and a small battery pack, eliminating the need for external charging. The Renault Duster Strong Hybrid features a 1.8-litre naturally aspirated petrol engine paired with two electric motors and a 1.4 kWh battery pack, resulting in a combined power output of 160 bhp and 172 Nm of peak torque.
Renault claims the Duster can operate on electric power for up to 80% of city driving conditions, but this doesn't mean it can complete every journey solely on electricity. Instead, the system seamlessly switches between petrol and electric power, using the electric motor at lower speeds and engaging the petrol engine when more power is required. The battery is charged through regenerative braking and the petrol engine.
What is a Plug-in Hybrid? (MG Hector Tomahawk PHEV)
Plug-in hybrids take a different approach. They also combine a petrol engine with an electric motor but have a larger battery pack that can be charged externally. The MG Hector Tomahawk PHEV is powered by a 1.5-litre petrol engine, an electric motor, and a massive 20.5 kWh battery pack.
MG claims the Hector Tomahawk can travel up to 115 km on pure electric power, making it ideal for daily city commutes of 30-40 km. Once the electric charge depletes, the petrol engine takes over, allowing for longer journeys without relying solely on charging stations.
Battery Capacity and Charging
The primary difference lies in battery capacity. The Renault Duster Strong Hybrid has a smaller 1.4 kWh battery pack, while the MG Hector Tomahawk boasts a substantial 20.5 kWh pack. This means the MG vehicle can store more electricity, enabling longer electric-only driving distances.
Interestingly, the Duster's battery charges automatically during driving, eliminating the need for external charging. In contrast, the Hector Tomahawk supports external charging, including 25 kW DC fast charging. It also charges its battery through regenerative braking and engine operation, though regular external charging is recommended for optimal performance.
Electric Driving Range and Performance
Both hybrid systems can operate in electric mode under specific conditions. However, their electric driving capabilities differ. In the Renault Duster, the electric motor handles shorter distances, and the petrol engine kicks in as needed. The MG Hector Tomahawk, with its larger battery, can cover more ground on electric power and is better suited for daily driving without frequent petrol refuelling.