The 2.5L FHEV (Full Hybrid Electric Vehicle) engine combines traditional internal combustion engine power with advanced electric motor technology. This engine is designed to deliver impressive performance, fuel efficiency, and lower emissions. Below, we detail the specifications and unique features of the 2.5L FHEV engine and its applications in the Ford Maverick, Escape Hybrid, and Escape Plug-In Hybrid.
| Engine Type: | 2.5L FHEV |
| Configuration: | Aluminum block and head, Atkinson cycle I-4 |
| Manufacturing Location: | Chihuahua, Mexico |
| Intake Manifold: | Composite |
| Exhaust Manifold: | Integrated |
| Valvetrain: | DOHC, IVCT |
| Pistons: | Aluminum |
| Connecting Rods: | Powder Forged |
| Bore and Stroke: | 3.50 x 3.94 in. |
| Displacement: | 152 cu. in. |
| Compression Ratio: | 13.0:1 |
| Crankshaft: | Forged Steel |
| Horsepower: | Total: 191 Combustion: 162 @ 5,600 rpm |
| Torque: | 155 lb.-ft. @ 4,000 rpm |
| Fuel Delivery: | Sequential multi-port fuel injection (SMFI) |
| Oil Capacity: | 5.7 Quarts |
| Coolant Capacity: | Gas Engine: 11.6 Quarts Electric: 4.7 Quarts |
| Type: | Permanent Magnet Electric Traction (Ford In House E_Motor) |
| Output: | 94 kW / 173 lb.-ft. battery peak |
| Battery Cooling System: | Liquid |
| Battery Location: | Passenger Side Under Cabin |
| Type: | Power-Split: Electronic Continuously Variable Transmission (eCVT) |
| Final Gear Ratio: | 2.91:1 |
| Battery Capacity: | 1.1-kWh lithium-ion battery |
| Electric Motor: | 94-kW electric traction motor |
| Regenerative Braking System |
| Engine Type: | 2.5L iVCT Atkinson Cycle I-4 Hybrid |
| Drive Type: | Front-Wheel Drive (FWD) or Intelligent AWD |
| Exhaust: | Dual-Chrome Exhaust Tips |
| Transmission Type: | eCVT |
| Horsepower: | SAE net: 163 @ 6,250 rpm Total System: 192 |
| Torque: | 155 lb.-ft. @ 4,500 rpm |
| Compression Ratio: | 13.0:1 |
| Valve Lifters: | Direct acting mechanical bucket |
| Engine Block Material: | Aluminum |
| Cylinder Head Material: | Aluminum |
| Induction System: | Naturally aspirated |
| Fuel Delivery: | Sequential multi-port electronic fuel injection |
| Fuel Type: | Regular unleaded |
| EPA-Estimated Ratings: | FWD: 42 City / 36 Hwy / 39 Combined MPG AWD: 42 City / 36 Hwy / 39 Combined MPG |
| Battery Capacity: | 1.1-kWh lithium-ion battery |
| Electric Motor: | 96-kW electric traction motor |
| Regenerative Braking System |
| Engine Type: | 2.5L iVCT Atkinson Cycle I-4 Plug-In Hybrid |
| Drive Type: | Front-Wheel Drive (FWD) |
| Exhaust: | Dual-Chrome Exhaust Tips |
| Transmission Type: | eCVT |
| Horsepower: | SAE net: 163 @ 6,250 rpm |
| Total System: | 210 |
| Torque: | 155 lb.-ft. @ 4,500 rpm |
| Compression Ratio: | 13.0:1 |
| Valve Lifters: | Direct acting mechanical bucket |
| Engine Block Material: | Aluminum |
| Cylinder Head Material: | Aluminum |
| Induction System: | Naturally aspirated |
| Fuel Delivery: | Sequential multi-port electronic fuel injection |
| Fuel Type: | Regular unleaded |
| EPA-Estimated Ratings: | FWD: 101 Combined MPGe |
| Battery Capacity: | 14.4-kWh lithium-ion battery |
| Electric Motor: | 96-kW electric traction motor |
| Regenerative Braking System |
The 2.5L FHEV engine in the Ford Maverick and Escape models is engineered to deliver a seamless hybrid driving experience. This engine combines the efficiency of the Atkinson cycle with the power of electric traction, providing smooth acceleration and excellent fuel economy.
The Atkinson cycle engine design enhances thermal efficiency by delaying the closure of the intake valve, allowing the engine to have a higher expansion ratio than compression ratio. This process extracts more energy from the combustion process, resulting in better fuel efficiency.
The DOHC configuration, along with Intelligent Variable Cam Timing (IVCT), optimizes the timing of the intake and exhaust valves. This increases efficiency and performance across a wide range of engine speeds.
The engine block and cylinder head are made from aluminum, which reduces weight and improves fuel efficiency. Aluminum construction also aids in better heat dissipation, enhancing the engine's durability and longevity.
Both the intake and exhaust manifolds are integrated into the cylinder head, reducing the overall weight of the engine and improving the flow of air and exhaust gasses. This integration contributes to the engine's compact design and efficiency.
Sequential multi-port fuel injection (SMFI) delivers precise amounts of fuel to each cylinder, improving combustion efficiency and reducing emissions. The fuel injectors are controlled electronically to ensure optimal performance under various driving conditions.
The 2.5L FHEV engine features a high compression ratio of 13.0:1, which improves thermal efficiency and power output. This high ratio allows the engine to extract more energy from the fuel, enhancing overall efficiency.
The electric motor in the hybrid system is a permanent magnet traction motor that provides additional torque and power. The motor is powered by a 1.1-kWh lithium-ion battery in the hybrid models and a 14.4-kWh battery in the plug-in hybrid variant. The battery is liquid-cooled to maintain optimal operating temperatures and efficiency.
The regenerative braking system captures kinetic energy during braking and converts it into electrical energy to recharge the battery. This process improves fuel efficiency and reduces wear on the braking system.
The Ford Escape Plug-In Hybrid takes efficiency a step further with its 2.5L iVCT Atkinson Cycle I-4 engine and 96-kW electric traction motor, delivering a total system horsepower of 210. This model features a 14.4-kWh lithium-ion battery, providing an EPA-estimated 101 Combined MPGe. The Plug-In Hybrid is designed to start in EV Mode, allowing for all-electric driving depending on battery state of charge and interior temperature.
1.1-kWh lithium-ion battery pack (Hybrid) / 14.4-kWh lithium-ion battery pack (Plug-In Hybrid)
Mounted under floor behind front-passenger seat
Liquid-cooled with an electric water pump and dedicated radiator. Air conditioning refrigerant cools the lines that the battery coolant flows through.
Starts automatically based on acceleration and battery charge.
No traditional shifting, slight transitions between modes.
Engine may shut off to conserve fuel and restart when the brake is released.
The Ford Maverick’s 2.5L FHEV engine combines a 2.5-liter Atkinson cycle I-4 engine with a permanent magnet electric traction motor, delivering a total system horsepower of 191. This setup ensures excellent fuel efficiency and responsive performance. The Maverick features an eCVT transmission for smooth power delivery and includes technologies like the Intelligent Oil-Life Monitor, regenerative braking system, and Smart Charging Alternator. The 1.1-kWh lithium-ion battery and liquid-cooled battery cooling system enhance its hybrid capabilities, making the Maverick a practical and efficient choice for urban and suburban driving.
The Ford Escape Hybrid features a 2.5L iVCT Atkinson Cycle I-4 engine paired with a 96-kW electric traction motor, providing a total system horsepower of 192. Available in both FWD and AWD, the Escape Hybrid offers impressive EPA-estimated ratings of 42 City / 36 Hwy / 39 Combined MPG. The hybrid powertrain includes a 1.1-kWh lithium-ion battery and a regenerative braking system to optimize fuel efficiency and reduce emissions. With its advanced driving dynamics and hybrid technologies, the Escape Hybrid is designed for those seeking a balance of performance and eco-friendliness.
The Ford Escape Plug-In Hybrid takes efficiency a step further with its 2.5L iVCT Atkinson Cycle I-4 engine and 96-kW electric traction motor, delivering a total system horsepower of 210. This model features a 14.4-kWh lithium-ion battery, providing an EPA-estimated 101 Combined MPGe. The Plug-In Hybrid is designed to start in EV Mode, allowing for all-electric driving depending on battery state of charge and interior temperature. With advanced features like the Intelligent Oil-Life Monitor, regenerative braking system, and Smart Charging Alternator, the Escape Plug-In Hybrid offers a versatile and efficient driving experience.
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