Audi has recently unveiled its latest MHEV plus hybrid technology with the introduction of the new A5 and Q5 models. This marks the first time the company has integrated this advanced system into its combustion engines, showcasing a commitment to meeting future customer requirements.
The MHEV plus technology, built on the Premium Platform Combustion (PPC), combines a powertrain generator (PTG), belt alternator starter (BAS), and a lithium iron phosphate (LFP) battery. This integration offers improved performance, reduced fuel consumption, and lower CO2 emissions, making it a significant advancement in Audi’s lineup.
One of the key components of the MHEV plus system is the PTG, capable of generating up to 18 kW (24 PS) of electrical power and providing 230 Nm of torque directly at the transmission output. This feature enhances the vehicle’s agility, especially during initial acceleration, leading to improved driving dynamics.
The PTG can be fully coupled or decoupled, allowing for electric driving at lower speeds and optimized efficiency at higher speeds. This supports the combustion engine, reducing fuel consumption and offering a variety of functions such as electric boosting, energy recovery, and partially electric driving, enhancing both comfort and performance.
The 48-volt system in the A5 and Q5 models is designed with liquid-cooled components to ensure optimal operation across varying temperatures. Weighing approximately 21kg, the PTG operates effectively in both front-wheel and all-wheel-drive vehicles without the need for additional modifications.
Audi’s MHEV plus technology also focuses on driving comfort, with the PTG providing smoother starts and more responsive acceleration, particularly at low speeds. The system enables emissions-free coasting and energy recovery during deceleration, reducing wear on mechanical brakes and improving overall efficiency.
The lithium-ion battery, constructed with LFP, offers a storage capacity of 37 ampere hours and a maximum discharge power of 24 kW. Integrated brake control system (iBRS) plays a crucial role in energy recovery, allowing regenerative braking without engaging friction brakes.
While the MHEV plus system is not available in the US market due to different customer needs, it represents Audi’s commitment to electrification and efficiency. The technology is expected to offer greater fuel economy and driving comfort, making it an attractive option for regions where hybrid technology is in high demand.
Overall, Audi’s MHEV plus hybrid technology showcases the brand’s dedication to innovation and sustainability, setting a new standard for performance and efficiency in the automotive industry.
