"NVH/Road Noise Transmission Path Analysis (TPA)" added to benchmarking report sales.

Ono Sokki Co., Ltd. (President and CEO: Yuji Okoshi), a manufacturer and distributor of electronic measuring instruments, will begin selling a new report, "NVH/Road Noise Transmission Path Analysis (TPA)," for the BMW i7, Germany's top-of-the-line EV sedan, as part of its new "Benchmarking Report Sales" business, starting June 3, 2026 (Wednesday).

Since 2023, we have been selling "benchmarking reports" that measure electric vehicles. The "NVH/Road Noise Transmission Path Analysis (TPA)" report, which is being added to our lineup now, is a report that has been frequently requested by our customers. This report investigates the NVH performance of vehicles and analyzes their contribution using TPA. In the future, we plan to expand our report lineup with existing benchmarking vehicle models, and will also gradually add new vehicle models.

Key points of this presentation

• We have released a "NVH/Road Noise Transmission Path Analysis (TPA)" report to meet customer needs.
• We delve into the core of the i7's performance, which boasts extremely high NVH (Noise, Vibration, and Harshness) capabilities, through actual driving tests and vibration tests.
• We provide measurement data utilizing our engineering technology.

Target Market

• Automobile manufacturers and other companies involved in electric vehicles

Regarding the sale of benchmarking reports

In the increasingly sophisticated and diverse field of automotive development, benchmarking is a crucial source of information. Especially in xEV development, where speed is paramount, there is a strong need to quickly acquire information and utilize it in development. Furthermore, this information need is not limited to automotive manufacturers; it is required by a wide range of companies, including motor suppliers. Our company, committed to providing reports focused on electric vehicles, leverages our unique perspective as a manufacturer of measuring instruments.

　

Benchmarking report sales

Report Details

*Available from Wednesday, June 3, 2026.

BMW i7 ^New

This vehicle is BMW's flagship BEV model. The body incorporates numerous NVH countermeasures, resulting in exceptional quietness. In this report, we will explore the full scope of its NVH performance through actual driving experiments on road noise and harshness surfaces on a test course, as well as hammering excitation experiments to understand the characteristics of the power unit mounts and perform power transmission path analysis (TPA).

Report contents

Vehicle NVH/Road Noise Transmission Path Analysis (TPA)

We conducted NVH measurements during actual driving (cabin noise, power unit noise and vibration, suspension vibration, etc.), determined the characteristics of the mounts through hammering excitation tests, and performed transmission path analysis (TPA) for road noise. Using TPA, we calculated the contribution, force, and body acoustic sensitivity of each body input point to the cabin noise measurement point (response point).