18239614. TRANSMISSION CONTROL SYSTEM AND METHOD FOR AN ELECTRIC VEHICLE simplified abstract (HYUNDAI MOTOR COMPANY)
Contents
TRANSMISSION CONTROL SYSTEM AND METHOD FOR AN ELECTRIC VEHICLE
Organization Name
Inventor(s)
Dongwon Jeoung of Suwon-si (KR)
Sunghyun Cho of Yongin-si (KR)
Jongyun Park of Hwaseong-si (KR)
Jungwoo Seo of Hwaseong-si (KR)
TRANSMISSION CONTROL SYSTEM AND METHOD FOR AN ELECTRIC VEHICLE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18239614 titled 'TRANSMISSION CONTROL SYSTEM AND METHOD FOR AN ELECTRIC VEHICLE
The abstract describes a transmission control system for an electric vehicle, including a motor, a transmission with multi-stage shifting using a dog clutch and a one-way clutch, a speed sensor, a motor control unit, and a vehicle control unit.
- The system controls drive torque from the motor based on the driver's accelerator position signal.
- The vehicle control unit manages the multi-stage shifting of the transmission according to a torque command derived from the accelerator position signal.
- The system performs clutch alignment control by applying reverse rotation torque through the motor to move a sleeve in a reverse direction to engage the dog clutch.
Potential Applications: - Electric vehicles - Automotive industry - Transmission control systems
Problems Solved: - Efficient control of drive torque in electric vehicles - Smooth shifting in multi-stage transmissions - Precise clutch alignment control
Benefits: - Improved performance and efficiency in electric vehicles - Enhanced driving experience with smooth shifting - Increased reliability and durability of the transmission system
Commercial Applications: Title: Electric Vehicle Transmission Control System for Enhanced Performance This technology can be utilized in electric vehicles to optimize drive torque control and shifting performance, leading to improved overall vehicle efficiency and driving experience. The market implications include increased demand for electric vehicles with advanced transmission systems.
Prior Art: Further research can be conducted on similar transmission control systems in electric vehicles to understand the existing technology landscape and potential areas for innovation.
Frequently Updated Research: Stay updated on advancements in electric vehicle transmission control systems and related technologies to ensure the implementation of the latest innovations in this field.
Questions about Electric Vehicle Transmission Control Systems: 1. How does the integration of a one-way clutch enhance the performance of the transmission system? 2. What are the key factors influencing the torque command calculation in the vehicle control unit?
Original Abstract Submitted
A transmission control system of an electric vehicle includes a motor configured to generate drive torque; a transmission configured to perform multi-stage shifting using a dog clutch in a restraint relationship with a one-way clutch configured to transmit forward power of the motor; a speed sensor configured to measure a rotation speed on an output side of the transmission; a motor control unit configured to control the drive torque from the motor according to a driver's accelerator position signal (APS) value; and a vehicle control unit configured to control the multi-stage shifting of the transmission according to a torque command based on the APS value, and to perform clutch alignment control by moving up a sleeve in a reverse direction to contact a hub through a reverse rotation operation of gear teeth by applying reverse rotation torque of predetermined drive force through the motor in a pre-engagement state of the dog clutch.
