18144743. MOTOR DRIVE SYSTEM AND CONTROL METHOD OF SAME simplified abstract (KIA CORPORATION)

MOTOR DRIVE SYSTEM AND CONTROL METHOD OF SAME

Organization Name

KIA CORPORATION

Inventor(s)

Seung Hyeon Bin of Hwaseong-Si (KR)

Byung Oh Tak of Hwaseong-Si (KR)

Seong Min Kim of Changwon-Si (KR)

Ho Rim Choi of Hwaseong-Si (KR)

MOTOR DRIVE SYSTEM AND CONTROL METHOD OF SAME - A simplified explanation of the abstract

This abstract first appeared for US patent application 18144743 titled 'MOTOR DRIVE SYSTEM AND CONTROL METHOD OF SAME

Simplified Explanation

The patent application describes a control method for a motor drive system that involves switching between different drive modes for a motor based on the functionality of a second inverter. When the second inverter malfunctions, the system switches to a different drive mode for the motor.

• Explanation of the patent:

   * The system includes a first motor connected to a first inverter and a second inverter, with the ability to switch between different drive modes.
   * If the second inverter malfunctions, the system automatically switches to a drive mode where the motor is only driven by the first inverter.
   * In this new drive mode, the output limit of the motor is relaxed, allowing for increased performance.

Potential Applications

The technology described in the patent application could be applied in various motor drive systems where redundancy and fault tolerance are crucial, such as electric vehicles, industrial machinery, and robotics.

Problems Solved

This technology solves the problem of ensuring continuous operation of a motor drive system even in the event of a malfunction in one of the inverters. By automatically switching to a different drive mode, the system can maintain functionality and performance.

Benefits

The main benefits of this technology include increased reliability, fault tolerance, and performance optimization of motor drive systems. By seamlessly transitioning between drive modes, the system can adapt to changing conditions and ensure continuous operation.

Potential Commercial Applications

The technology has potential commercial applications in industries that rely on motor drive systems, such as automotive, manufacturing, and automation. Companies developing electric vehicles, industrial machinery, and robotics could benefit from implementing this technology to enhance the reliability and performance of their products.

Possible Prior Art

One possible prior art could be the use of redundant inverters in motor drive systems to provide fault tolerance and reliability. However, the specific method of automatically switching between drive modes based on inverter functionality may be a novel aspect of this technology.

How does the system detect malfunctions in the second inverter and trigger the switch to a different drive mode?

The patent application does not provide details on the specific method or mechanism used to detect malfunctions in the second inverter. Further information on the detection process would be helpful to understand the system's overall functionality.

What are the potential implications of relaxing the output limit of the motor in the new drive mode?

The patent application mentions that the output limit of the motor is relaxed in the new drive mode, but it does not elaborate on the potential implications of this change. Understanding how this adjustment affects the motor's performance and efficiency would be important for evaluating the overall impact of the technology.

Original Abstract Submitted

In a control method of a motor drive system, when a first motor corresponding to a first drive wheel is being driven in a second drive mode among a first drive mode in which the first motor is driven by a first inverter of the motor drive system and connected to a first end of each of coils of the first motor and the second drive mode in which the first motor is driven by the first inverter and a second inverter connected to a second end of each of the coils and configured to selectively operate, whether or not the second inverter malfunctions is determined. When the second inverter malfunctions, a drive mode is changed so that the first motor is driven in the first drive mode. An output limit of the first motor in the first drive mode is relaxed.