Patents by Inventor Christian Rylander

Christian Rylander has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230331227
    Abstract: The present invention provides a control method for automatic holding, a vehicle's brake system and a brake control module thereof. The vehicle's brake system comprises two brake control modules and electromechanical brakes controlled by the brake control modules, a drive motor and a drive motor controller for controlling the drive motor. The control method comprises: after the vehicle transitions from moving to stationary, controlling the electromechanical brakes to continuously provide a brake torque, wherein the brake torque is a sum of the effective brake torque and a margin brake torque; and continuously outputting a drive-off signal to the drive motor controller to control the drive motor not to provide drive torque; until a driver requested drive torque is continuously increased to a critical torque which is close to the effective brake torque.
    Type: Application
    Filed: June 22, 2023
    Publication date: October 19, 2023
    Inventor: Christian Rylander
  • Publication number: 20220314947
    Abstract: The present invention relates to a braking technology of a vehicle, and in particular to a high fault tolerance brake system for a vehicle, a control method for the brake system, and a computer readable medium. The brake system comprises two control modules (211, 212) and an electric brake device (131; 132) provided on each wheel of the vehicle. Each of the electric brake devices (131; 132) may receive brake requests from the two control modules (211, 212) generated in response to a brake demand to brake or release a corresponding wheel. The brake system may further comprise a raw signal acquisition module (311) for acquiring a raw signal indicating the brake demand and directly transmitting the raw signal to at least one of the electric brake devices (131; 132) for verifying the brake requests. The present invention may improve fault tolerance of the vehicle brake system.
    Type: Application
    Filed: June 23, 2022
    Publication date: October 6, 2022
    Inventors: Anders Nilsson, Christian Rylander, Anders Lindqvist, Zi Wang
  • Publication number: 20220009464
    Abstract: This present disclosure provides a controlling method for an actuator (104), an actuator (104), and an electromechanical brake system of brake technology. The controlling method comprises: receiving a brake demand; controlling an electric motor (108) based on the brake demand; if the brake demand satisfies a preset stationary condition within a preset period, controlling a brake force holding device (108) to lock a shaft. In this way, frequent variations of the brake demand caused by interference from ambient disturbance or the driver's unsteady brake instructions may be prevented so that the actuator can be locked timely, thereby maintaining a continuous brake torque output with low power consumption or zero power consumption to provide a continuous brake force to the vehicle.
    Type: Application
    Filed: September 24, 2021
    Publication date: January 13, 2022
    Inventors: Jiajun Luo, Christian Rylander
  • Patent number: 8825335
    Abstract: A method for determining the yaw tendency of a vehicle is hereby presented. The method comprises the steps of determining the propulsion states of one or several wheels of said vehicle, and estimating yaw moment variations of a vehicle from said propulsion states, wherein said yaw moment variations are induced from altered propulsion states between at least two of the wheels of said vehicle.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: September 2, 2014
    Assignee: BorgWarner TorqTransfer Systems AB
    Inventor: Christian Rylander
  • Publication number: 20130325283
    Abstract: A method for determining the yaw tendency of a vehicle is hereby presented. The method comprises the steps of determining the propulsion states of one or several wheels of said vehicle, and estimating yaw moment variations of a vehicle from said propulsion states, wherein said yaw moment variations are induced from altered propulsion states between at least two of the wheels of said vehicle.
    Type: Application
    Filed: January 25, 2011
    Publication date: December 5, 2013
    Inventor: Christian Rylander