AISIN’s Electrification Innovations: A Test Drive Experience
In the race toward a carbon-neutral automotive future, shifting from combustion engines to electric motors is a must. While battery electric vehicles (BEVs) are a key part of this shift, hybrid electric vehicles (HEVs) and plug-in hybrid electric vehicles (PHEVs) will continue to play a large role. AISIN is at the forefront of this transition, developing advanced technologies. This article presents a report by Motoki Watase, an automotive writer, on a test drive event that showcased AISIN’s latest advancements.
AISIN aims to be the auto parts manufacturer closest to automobile companies, focusing on integrating components to improve vehicle performance. Their focus is on electrification, carbon neutrality, and intelligence. The company hosted a Technology and Test Drive Experience Event at the AISIN Toyokoro Proving Ground in Hokkaido, Japan, in August 2024. This event introduced the company’s newest electrification technologies.
The Toyokoro Proving Ground provides a versatile testing environment, with tracks for high-speed driving, unpaved winding roads, and courses designed to mimic road conditions worldwide. This facility is essential for AISIN’s technological developments.
AISIN showcased its strategic shift toward growth areas, focusing on carbon neutrality, electrification, and intelligence. The test drive highlighted new technologies in these areas.
Next-Generation Electric Drive Module: The eAxle
One of the key technologies featured was the next-generation electric drive module, specifically the Xin1 eAxle. An eAxle combines the inverter, gearbox, and motor into a single unit. The Xin1 eAxle integrates nine components, reducing space, weight, and energy loss. This new eAxle is planned for use in smaller vehicle models.
During the test drive, Watase tested a vehicle equipped with the 9in1 eAxle at speeds up to 120 km/h. The BEV provided strong acceleration and is suitable for highway driving. The compact and lightweight design of the eAxle allows for greater flexibility in vehicle design.
This design allows vehicle manufacturers to create more interior space, improve crumple zones, or increase battery capacity. The unit is designed to cater to the different needs of automobile manufacturers.
New Two-Motor Drive Unit for HEVs and PHEVs
While BEVs are important, HEVs and PHEVs provide a more user-friendly option with growing popularity. Both HEVs and PHEVs use an engine and a motor, but with varying operational designs.
AISIN developed a “series-split system” that combines the benefits of both the series and split systems, improving efficiency. The series-split system separates the drive motor from the generator motor, improving electricity efficiency when running on the motor alone.
During the test drive, Watase noted the smooth feel and significant improvements in fuel and electricity efficiency provided by the new drive system. This is particularly important for PHEVs, which are increasingly used in larger vehicles. Environmental regulations are likely to increase the demand for PHEVs, driving the need for new systems that improve driving performance and efficiency.
Part 2 of this report will cover new electrification technologies, such as brakes and aerodynamic devices, along with technologies related to intelligence.
