Patent classifications
B60T2270/40
BRAKE SYSTEM AND METHOD FOR RESPONDING TO EXTERNAL BOOST REQUESTS DURING PREDETERMINED LOSS OR DEGRADED BOOST ASSIST CONDITIONS
A braking system for a vehicle is disclosed. The braking system may have a primary braking system (PBS) having a boost assist subsystem, and an electronic control unit (ECU) for controlling the PBS and the boost assist subsystem. A memory may be in communication with the ECU. A database may be stored in the memory and may define a plurality of category function codes. The codes may define what levels of braking operation may be provided by the PBS when one of a fault or an anomaly is detected. The ECU may further be configured to implement a brake boost evaluation software module to determine whether to apply a requested level of braking being requested by a subsystem of the vehicle when at least one of a malfunction or anomaly is present.
System, method, and apparatus for improving safety of ECP-equipped trains with flammable cargo
A safety system for a train equipped with an ECP air brake arrangement, in which the train includes at least one locomotive and at least one railcar connected to a trainline network, the system including: at least one power supply; at least one power supply controller to communicate over the trainline network and control the at least one power supply; at least one local controller to: communicate over the trainline network; receive or determine railcar data including a condition or parameter associated with the at least one railcar; and, based at least partially on the railcar data, generate at least one first message to deactivate the at least one power supply. A computer-implemented method for monitoring and responding to at least one railcar's derailment is also disclosed.
Distributed real-time computer system and method for forcing fail-silent behavior of a distributed real-time computer system
The invention relates to a method for forcing fail-silent behavior of a periodically functioning, distributed real-time computer system, which real-time computer system comprises at least two redundant NSCFCUs. At the beginning of a frame, the at least two redundant NSCFCUs (110, 111) are supplied with the same input data, wherein each of the redundant NSCFCUs calculates a result, preferably by means of a deterministic algorithm, particularly from the input data, and wherein this result is packed into a CSDP with an end-to-end signature, and wherein the CSDPs of the NSCFCUs (110, 111) are transmitted to an SCFCU (130), and wherein the SCFCU (130) checks whether the bit patterns of the received CSDPs are identical, and, if disparity of the bit patterns is found, prevents further transmission of the CSDPs, particularly those CSDPs in which disparity was found. Furthermore, the invention relates to a periodically functioning, distributed real-time computer system.
SYSTEM FOR DRIVERLESS OPERATION OF UTILITY VEHICLES
A system for providing driverless operation of a utility vehicle in a limited area, including: a control module to output a valid autonomous control signal to an electropneumatic parking brake system and to control the utility vehicle in a driverless manner, wherein the utility vehicle allows an autonomous operating mode and includes the electropneumatic parking brake system which is configured to release the parking brake system when the valid autonomous control signal is present and to initiate automatic emergency braking when no valid autonomous control signal is applied; and a transfer module to transfer control of the utility vehicle from the driver to the control module. Also described are a related method and computer readable medium.
BRAKING SYSTEM FOR A MOTOR VEHICLE
A braking system for a motor vehicle including a main braking circuit, an auxiliary electric braking circuit configured to perform parking braking, a first electronic control device which controls i) the main braking circuit to actuate a first braking member and a second braking member, and ii) in the auxiliary electric braking circuit, a first electric actuator of the first braking member, and a second electronic control device which controls, in the auxiliary electric braking circuit, a second electric actuator of the second braking member. A motor vehicle including such a braking system and to methods for controlling such a braking system.
Electronic parking brake apparatus
An EPB (Electronic Parking Brake) apparatus may include: a housing unit; a motor unit mounted in the housing unit; a worm wheel gear unit engaged and rotated with the motor unit; a piston unit connected with a brake shoe; and a nut unit mounted on the worm wheel gear unit, coupled to the piston unit, and moved by the rotation of the worm wheel gear unit so as to pressurize the piston unit. The housing unit is deformed by the movement of the piston unit and restricts the operation of the motor unit.
Method for actuating a parking brake in a vehicle
A method of actuating a parking brake for a vehicle having an electromechanical brake device in a situation whereat driving dynamics state information is not available in the vehicle and whereat a driver operates the parking brake includes producing an electromechanical braking force with a magnitude that is less than a maximum braking force of the parking brake.
SAFETY OF AUTONOMOUS VEHICLES BY REMOTE SUPPORT REQUEST
A remote support system provides support to an autonomous drive system of a vehicle in response to a support request. The remote support may include guiding the autonomous drive system of the vehicle through a hazardous environment. A call to the remote support system may be initiated, for example, via a user interface control button or by scanning a bar code, QR code, or RFID associated with the vehicle on a device that sends the code with vehicle information to the remote support system. The remote support system may determine an urgency of the request to assess whether immediate support should be initiated or whether to first initiate a communication connection with a passenger. Furthermore, an emergency brake system of the vehicle may be triggered by the remote support system or in response to the vehicle losing a connection to the remote support system during a support request.
METHOD FOR OPERATING A VEHICLE COMBINATION
A method is for operating a vehicle combination having a tractor and at least one trailer. A brake control unit of a tractor brake system monitors the braking behavior of the tractor or the vehicle combination, and if necessary the brake pressure at each of the wheel brakes of the tractor, and initiates the deceleration of the trailer. To improve the driving safety of the vehicle in the event of limitation of the functionality of components of the vehicle combination, at least one vehicle component of the tractor and/or of the trailer, the vehicle component being relevant for driving safety, is monitored with regard to functionality, and in the event of detection of a limitation of the functionality of a component, the brake control unit of the tractor brake system decelerates the vehicle combination using a trailer brake system of the trailer.
Vehicle locked wheel detector
A vehicle locked wheel detector detects initial trailer movement or enablement thereof, for example using a spring brake air pressure switch. The outputs from ABS wheel rotation sensors are monitored to determine whether all wheels are rotating. If one wheel is not rotating, then a locked wheel indicator alerts the driver that one of the wheels may be locked. In some embodiments, if both wheels on one side of the trailer are either stationary or rotating below a threshold speed and the wheels on the opposite side are rotating relatively more quickly, then the trailer is presumed to be pivoting around a sharp turn, and so the wheels will be presumed to be rolling. A finite temporal-spatial interval subsequent to initial trailer movement is defined within which wheel lock can be detected, and upon expiration of the temporal-spatial interval the ABS operates in a normal manner.