Technology developed from the new Chevrolet Volt
The eAssist system pairs a compact lithium-ion battery pack with both the Silverado and Sierra’s 5.3L EcoTech V-8 and 8-speed automatic transmission to provide:
Electric Power Boost:
The on-board electric motor provides up to 13 hp and 44 lb-ft of supplemental power during acceleration and passing. The electric motor also enables the Active Fuel Management system on the 5.3L V-8 engine to operate in 4-cylinder mode for longer periods, resulting in additional fuel economy benefits.
Added fuel savings are achieved by seamlessly turning the engine off when stopped at a traffic light or in congested traffic and turning the engine back on when the accelerator is pressed.
By using the on-board electric motor as a generator, the energy recovered while braking is converted to electricity to recharge the onboard battery system.
These features deliver a 13 percent improvement in city fuel economy, based on EPA estimates. The 2016 Silverado eAssist will have an EPA estimated 18 mpg city, a 2 mpg improvement over the equivalent Silverado 1500 with the 5.3L V-8 and 8-speed automatic. EPA estimated highway fuel economy for the Silverado eAssist is 24 mpg, while the combined rating is 20 mpg.
Power for the eAssist system is supplied by a 24-cell, air-cooled 0.45 kWh lithium-ion battery pack located under the center console (or front bench seat) that uses the same battery cells as the Chevrolet Malibu Hybrid. It weighs nearly 15 percent less than the previous generation eAssist system, yet provides up to 15 kW of power to the electric motor.
A reengineered power inverter module is now liquid cooled and moved underhood for improved packaging and performance. The software used to control the battery system is based off a modified version of the software for the Chevrolet Volt.
The compact induction motor, located on the accessory drive, provides peak regen capability of 15kW resulting from advanced software controls based off those used in the Volt. The motor, which features a stator design leveraged from the Volt and Malibu Hybrid, acts like an electric torque booster, providing up to 44 lb.-ft. (60 Nm) and up to 13 hp (9.7 kW) of additional boost in high-load situations.
This new generation of eAssist is also more modular than the previous system, meaning it could be more easily used in front-wheel or rear-wheel drive drivetrain configurations and it’s capable of using more or fewer cells, based on power needs for each vehicle application.
What am I giving up?
- You won’t see your local gas station attendant as much.
- Your truck gains about 100 lbs (but still maintains the 7,400 lb GVWR)
What will it cost me?
- The eAssist system helps save you money (not even counting the savings at the pump!)
- This means the eAssist truck actually costs less than the equivalent gasoline powered truck.
How do I order one?
Crew Cab Short Box
- Silverado 1LT
- Silverado 1LZ
- Sierra SLT