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January 21, 2021

Nissan's new "Rogue" has been launched and equipped with
JTEKT Electric Power Steering with Gen2 in-house MCU

As from the end of last October, newly launched "Rogue" of Nissan Motor Co., Ltd. (hereinafter Nissan Motor) in North American market has been equipped with Electric Power Steering (hereinafter EPS) with the second generation in-house MCU of JTEKT Corporation (hereinafter JTEKT).
By developing the MCU system in-house, it made possible to respond quickly and flexibly to the needs of our customers and maximize the performance of EPS that is our main line of products.
In the future, we will continue to propose products with improved functional safety performance and support for autonomous driving to the automobile manufacturers around the world.

Nissan Rogue

【Nissan Rogue】

3D images of EPS and in-house MCU

【3D images of EPS and in-house MCU】

1.Development background

 

The demands of customers are diversifying and competition for new vehicle development is intensifying year by year as to the autonomous driving and the expansion of safety equipment, and the characteristics of each vehicle differ greatly.

The impact is also affecting various automotive parts and it is necessary to respond quickly and flexibly to the needs of the automobile manufacturers.

Under such circumstances, we have developed a new MCU by our own and the part is the main component of EPS which is our main line of products. We have established a system to meet the needs of the automobile manufacturers.

2.Features of the developed product

 

● Adoption of new generation steering control JWill

The newly developed steering control JWill* has been adopted instead of the conventional control.
Through fine tuning, it has become possible to respond to a wide range of customers' commitment to the steering function.

* JWill: New-generation EPS control that incorporates a torque feedback function to improve steering feel

● Adopts new embedded software based on model-based development, AUTOSAR support, etc.

Embedded software based on model-based development and AUTOSAR support, which has become widely adopted as a standard in the automobile industry, has been adopted from the 2nd generation MCU.
We are developing the software in collaboration with JTEKT IT Development Center Akita, while centered on the Higashi-Kariya Plant, which has been a base for software development since last year.

3.Future development

 

In the future, in anticipation of ADAS level 3 and 4 for autonomous driving, we will proceed with the development of EPS equipped with MCU with functional safety that complies with the international standard ISO26262, and offer products in competitive pricing with the necessary functions according to customer needs.