Traction Failure Patents (Class 303/122.01)
  • Patent number: 8825332
    Abstract: A method is described for stabilizing a vehicle during a braking maneuver, in which the vehicle is steered at the same time. In order to bring the vehicle back again into a controlled state as rapidly as possible, the driving state is monitored with respect to a driving situation in which the wheel slip of the front wheels is greater than a specified threshold value, and besides that, a steering requirement is present. If such a driving situation has been detected, the brake pressure is first reduced at a first front wheel and after that at a second front wheel on the other side of the vehicle, until the wheel start-up pressure is reached. Because of that, the first wheel starts up substantially faster than in response to a simultaneous pressure reduction.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: September 2, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Philipp Frueh, Rainer Brueggemann
  • Patent number: 8774990
    Abstract: A method for demanding safety reactions for a rail vehicle having a plurality of appliances each able to demand a safety reaction when required, namely a braking process or a traction inhibit or both for the rail vehicle, includes: a) identification of a state in which one of the safety reactions should be carried out by one of the appliances, b) demanding the safety reaction by the appliance through a data bus, and c) feeding back information to the demanding appliance that the safety reaction has been carried out or intervening in a safety loop to initiate the desired safety reaction, if the safety reaction is not carried out.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: July 8, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wilhelm Burg, Norbert Werkmeister
  • Patent number: 8738264
    Abstract: An automotive vehicle braking system and method for controlling the same. The system includes an electronic controller communicatively coupled to a vehicle braking system and a vehicle motion detection device. The braking system is configured to be automatically activated in response to detection of an object in a path of the vehicle. Once activated, the braking system is deactivated either by the driver or a pre-determined time period after detection that motion of the vehicle has stopped. Prior to deactivation of the vehicle braking system an HMI message is activated indicating imminent deactivation of the vehicle braking system.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: May 27, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Wilford Trent Yopp, Wangdong Luo, Stephen Varghese Samuel
  • Patent number: 8046146
    Abstract: A method is provided for adaptively determining an anti-lock braking strategy that includes monitoring a distance differential of at least one target in proximity to a driven vehicle. An anti-lock braking strategy is determined as a function of the distance differential. The anti-locking braking strategy is applied as a function of the distance differential.
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: October 25, 2011
    Assignee: Kelsey-Hayes Company
    Inventors: Douglas Charles Osborn, James Andrew Techentin, Jong Wook Lee
  • Publication number: 20080179945
    Abstract: A method and system is provided for detecting and performing diagnostics regarding an incipient ground fault that may occur in an electrical propulsion system of a traction vehicle, such as a locomotive, transit vehicle, or off-highway vehicle. The method allows providing a first ground connection for the electrical propulsion system. This first ground connection forms a grounding path generally used by the electrical propulsion system during normal operation. The method further allows providing a second ground connection for the electrical propulsion system. This second ground connection forms a grounding path selectively usable in lieu of the first ground connection. A control strategy is defined for switching between the first ground connection and the second ground connection. A respective leakage current associated with at least one of the first and second ground connections may be monitored.
    Type: Application
    Filed: July 24, 2007
    Publication date: July 31, 2008
    Inventors: Mark Alan Linebach, Ajith Kuttannair Kumar, Bret Dwayne Worden, Jeremy T. McGarry, Scott Joseph Zarella
  • Patent number: 6691017
    Abstract: A vehicle behavior control device includes a turning limit state detecting device for detecting a turning limit state of a vehicle and an engine output control device for performing a torque-down control by decreasing an engine output when the turning limit state of the vehicle is detected.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: February 10, 2004
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Masaki Banno, Shiro Monzaki
  • Patent number: 6587774
    Abstract: A method and a system for operating a brake system of a motor vehicle having traction control are described. The brake system contains sensors which are assigned to the individual vehicle wheels and with which a quantity representing at least the driving and/or braking forces acting between the road surface and the vehicle wheel is detected for the respective vehicle wheel. For operation of the brake system having traction control, pressure quantities which describe the brake pressure established for the respective vehicle wheel are analyzed. The pressure quantities are determined as a function of the quantities detected by the sensors.
    Type: Grant
    Filed: January 2, 2001
    Date of Patent: July 1, 2003
    Assignee: Robert Bosch GmbH
    Inventors: Ulrich Hessmert, Jost Brachert, Thomas Sauter, Helmut Wandel, Norbert Polzin
  • Publication number: 20030090148
    Abstract: Method and apparatus for activation of an emergency brake function (8; 8′) within a vehicle (1) in dependence of whether a regular brake function. The method and apparatus include a first brake circuit and a second brake circuit that are out of order. A first sensor (20; 20′) is included for detecting whether the pressure (p1) in the first brake circuit falls below a first limit value (p1G). A second sensor is included (21; 21′) for detecting whether the pressure (p2) in the second brake circuit falls below a second limit value (p2G). A means is also provided (16; 24, 25, 26) for activation of said emergency brake function if the pressure (p1) in the first brake circuit falls below the first limit value (p1G) at the same time as the pressure (p2) in the second brake circuit falls below the second limit value (p2G). An activation process for an emergency brake function is provided regarding the method.
    Type: Application
    Filed: November 5, 2002
    Publication date: May 15, 2003
    Applicant: Volvo Articulated Haulers AB
    Inventor: Goran Eliasson