Traction Failure Patents (Class 303/122.01)
-
Patent number: 8825332Abstract: 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: GrantFiled: October 25, 2010Date of Patent: September 2, 2014Assignee: Robert Bosch GmbHInventors: Philipp Frueh, Rainer Brueggemann
-
Patent number: 8774990Abstract: 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: GrantFiled: October 29, 2010Date of Patent: July 8, 2014Assignee: Siemens AktiengesellschaftInventors: Wilhelm Burg, Norbert Werkmeister
-
Patent number: 8738264Abstract: 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: GrantFiled: February 5, 2013Date of Patent: May 27, 2014Assignee: Ford Global Technologies, LLCInventors: Wilford Trent Yopp, Wangdong Luo, Stephen Varghese Samuel
-
Patent number: 8046146Abstract: 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: GrantFiled: February 3, 2006Date of Patent: October 25, 2011Assignee: Kelsey-Hayes CompanyInventors: Douglas Charles Osborn, James Andrew Techentin, Jong Wook Lee
-
Publication number: 20080179945Abstract: 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: ApplicationFiled: July 24, 2007Publication date: July 31, 2008Inventors: Mark Alan Linebach, Ajith Kuttannair Kumar, Bret Dwayne Worden, Jeremy T. McGarry, Scott Joseph Zarella
-
Patent number: 6691017Abstract: 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: GrantFiled: December 12, 2002Date of Patent: February 10, 2004Assignee: Aisin Seiki Kabushiki KaishaInventors: Masaki Banno, Shiro Monzaki
-
Patent number: 6587774Abstract: 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: GrantFiled: January 2, 2001Date of Patent: July 1, 2003Assignee: Robert Bosch GmbHInventors: Ulrich Hessmert, Jost Brachert, Thomas Sauter, Helmut Wandel, Norbert Polzin
-
Publication number: 20030090148Abstract: 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: ApplicationFiled: November 5, 2002Publication date: May 15, 2003Applicant: Volvo Articulated Haulers ABInventor: Goran Eliasson