18538024. DRIVING FORCE CONTROL DEVICE simplified abstract (TOYOTA JIDOSHA KABUSHIKI KAISHA)
Contents
DRIVING FORCE CONTROL DEVICE
Organization Name
TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor(s)
Hiroki Iguma of Sunto-gun (JP)
Akira Hibino of Susono-shi (JP)
DRIVING FORCE CONTROL DEVICE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18538024 titled 'DRIVING FORCE CONTROL DEVICE
Simplified Explanation:
This patent application describes a driving force control device that detects resonance between a vehicle and the road based on the motor's rotational speed. When resonance is detected, the device limits the motor's torque to prevent further vibration.
Key Features and Innovation:
- Detection of resonance in the vehicle-road system based on motor speed
- Limiting motor torque to reduce vibration when resonance occurs
- Extraction of fluctuation component from motor speed using a band-pass filter
- Torque reduction starting at 270 degrees in the phase of the extracted waveform
Potential Applications:
This technology can be applied in various vehicles to improve ride comfort and stability by reducing vibration caused by resonance between the vehicle and the road.
Problems Solved:
This technology addresses the issue of vehicle vibration caused by resonance, which can lead to discomfort for passengers and affect the vehicle's stability and performance.
Benefits:
The benefits of this technology include enhanced ride comfort, improved stability, and reduced wear and tear on the vehicle components due to reduced vibration.
Commercial Applications:
Potential commercial applications of this technology include automotive industry for vehicles such as cars, trucks, and buses to enhance passenger comfort and overall driving experience.
Prior Art:
Readers can explore prior art related to this technology in the field of vehicle dynamics, vibration control systems, and automotive engineering.
Frequently Updated Research:
Stay updated on the latest research in vehicle dynamics, vibration control, and automotive technology to understand the advancements in this field.
Questions about Driving Force Control Device: 1. How does the driving force control device detect resonance between the vehicle and the road? 2. What are the potential benefits of limiting the motor's torque when resonance occurs?
Original Abstract Submitted
A driving force control device in which, based on the rotational speed of the motor mounted on the vehicle, it is determined whether resonance occurs in the vehicle with respect to the road, and when it is determined that resonance occurs in the vehicle, the torque of the motor is limited. Only the fluctuation component of the rotation speed is extracted from the rotation speed of the motor with a band-pass filter. When limiting the torque of the motor, the torque reduction is started at the timing of 270 degrees in the phase of the waveform which regards the extracted fluctuation component as the COS waveform.
