Patent classifications
B60T2240/00
Electrical equipment of a vehicle having redundant ABS and driving dynamics control
A vehicle-electrical-apparatus, including: a service-brake-valve-device (SBVD) having an electropneumatic service-brake-device (ESBVD), which is an electronically-brake-pressure-regulated-brake-system (EBPRBS), having an ESBVD, a first-electronic-brake-control-device (EBCD), electropneumatic-modulators (EM) and pneumatic-wheel-brake actuators (PWBA); a sensor-device; the first-EBCD controls the EMs generating pneumatic brake-control-pressures (PBCP) for the PWBAs, and the ESBVD has a service-brake-actuation-member (SBAM) and an electrical-channel containing an electrical-brake-value-transmitter, actuate-able by the SBAM, and a second-EBCD couples brake-request signals into the first-EBCD depending on the AS, and, within a pneumatic-service-brake-circuit, a pneumatic-channel in which a control-piston of the SBVD is loaded with a first-actuation-force (AF) by actuating the service-brake-actuation-member based on a driver brake-request, and the control-piston controls a double-seat valve of the SBVD to generate PBCPs for the PWBAs; generating a second AF that acts on the control-piston; brake slip/driving-dynamics-regulation are in the second-EBCD, the second-EBCD receives sensor-signals, and for braking requested, generating the second AF to perform a brake-slip and/or driving-dynamics-regulation.
Closed-loop control of regenerative braking
Systems, methods, and vehicles for closed-loop control of regenerative braking. The system includes, in one implementation, a regenerative braking subsystem and a vehicle controller. The vehicle controller is configured to command the regenerative braking subsystem to apply a first amount of regenerative braking torque. The vehicle controller is also configured to determine a current vehicle deceleration while the first amount of regenerative braking torque is applied. The vehicle controller is further configured to determine a difference between the current vehicle deceleration and a target vehicle deceleration. The vehicle controller is also configured to set a second amount of regenerative braking torque to reduce the difference between the current vehicle deceleration and the target vehicle deceleration. The vehicle controller is further configured to command the regenerative braking subsystem to apply the second amount of regenerative braking torque.
Pedal feel emulator assembly and a brake system including the pedal feel emulator assembly
A pedal feel emulator comprises a housing extending along a center axis between a closed end and an opened end and defining a chamber extending therebetween. A first piston is slidably disposed in the chamber. The first piston defines a compartment in fluid communication with the chamber. A second piston is slidably disposed in the compartment. A spring seat extends radially outwardly from the second piston. A first elastic member is located in the chamber extending between the spring seat and the closed end. A second elastic member is located in the compartment and extending between the spring seat and the first piston. A third elastic member is located between the second piston and the first piston. A brake system including the pedal feel emulator is also disclosed herein.
Braking system
A vehicle control system comprising an electronic processor, the processor comprising an input port for receiving data from a loading apparatus concerning at least one of the weight, dimensions, volume, or location of a load placed or to be placed by the loading equipment into or onto an associated vehicle in which the vehicle control system is fitted, and is programmed to use the data received from the loading apparatus to make control adjustments such that the associated vehicle maintains stability.
PEDAL FEEL EMULATOR ASSEMBLY AND A BRAKE SYSTEM INCLUDING THE PEDAL FEEL EMULATOR ASSEMBLY
A pedal feel emulator comprises a housing extending along a center axis between a closed end and an opened end and defining a chamber extending therebetween. A first piston is slidably disposed in the chamber. The first piston defines a compartment in fluid communication with the chamber. A second piston is slidably disposed in the compartment. A spring seat extends radially outwardly from the second piston. A first elastic member is located in the chamber extending between the spring seat and the closed end. A second elastic member is located in the compartment and extending between the spring seat and the first piston. A third elastic member is located between the second piston and the first piston. A brake system including the pedal feel emulator is also disclosed herein.
SELF-CONTAINED INTELLIGENT BRAKING SUBSYSTEM
A control system includes one or more processing circuits comprising one or more memory devices coupled to one or more processors. The one or more memory devices are configured to store instructions thereon that, when executed by the one or more processors, cause the one or more processors to acquire speed data regarding current speeds of tractive elements of the vehicle from tractive element speed sensors of the vehicle, determine speed references for the tractive elements to perform autonomous driving operations where the speed references indicate speeds at which each of the tractive elements should rotate to accommodate the autonomous driving operations, and control at least one of a driveline or a brake system of the vehicle to selectively alter the current speeds of the tractive elements of the vehicle based on the current speeds and the speed references to accommodate the autonomous driving operations.
METHODS AND APPARATUS TO EXTEND BRAKE LIFE CYCLE
Methods, apparatus, systems, and articles of manufacture to extend brake life cycle are disclosed herein. An example vehicle includes a first brake associated with a first wheel of the vehicle, a second brake associated with a second wheel of the vehicle, memory, and a brake controller to execute instructions to detect a first parking event, determine, via a first sensor, a condition of the vehicle, access, from the memory, a record of a second parking event including an activation of the first brake, the second parking event preceding the first parking event, and in response to determining the condition satisfies a threshold, engage the second brake without engaging the first brake.
BRAKING CONTROL DEVICE FOR VEHICLE
A braking control device is applied to, for example, a vehicle in which a regenerative braking force is generated on a front wheel by a regenerative generator provided on the front wheel. The braking control device includes an actuator configured to individually generate a front wheel friction braking force on the front wheel and a rear wheel friction braking force Fmr on a rear wheel of the vehicle; and a braking controller configured to control the actuator. In the braking control device, the braking controller is configured to regulate the front and rear wheel friction braking forces based on a normative regenerative force corresponding to a rotation speed equivalent value equivalent to a rotation speed of the regenerative generator.
ELECTRONIC PARKING BRAKE SYSTEM
The electronic parking brake system according to an exemplary embodiment of the present disclosure includes a first ECU (electronic control unit) and a second ECU respectively connected to a plurality of motors for providing a driving force to a wheel to control the plurality of motors, wherein the second ECU includes a power reserve system for storing power supplied from a battery; a switch for switching to connect the plurality of motors to the first ECU or the second ECU based on the operating state of the first ECU; and a second MCU for identifying an operating state of the first ECU, controlling the switch to connect the plurality of motors from the first ECU to the second ECU based on the operating state being an inactive state, and controlling the plurality of motors through the power stored in the power reserve system.
Work Vehicle
A self-driving work vehicle, including: a traveling apparatus; a vehicle body supported by the traveling apparatus on ground; a variable traveling power supply apparatus configured to supply rotational drive power to the traveling apparatus; a travel operation interface configured to adjust a rate of the rotational drive power; a parking brake provided for a transmission shaft of the variable traveling power supply apparatus; a rotation detector configured to detect rotation of the traveling apparatus or the transmission shaft; and a controller configured or programmed to: control the parking brake to a braking state or a non-braking state by a parking brake control module; manage the braking state or the non-braking state as a vehicle body state by a condition management module, the braking state and the non-braking state being operating states of the parking brake.