46results about "ESP control systems" patented technology

An integrated electronic brake system includes a main control section configured in a first area to receive one or more of a value from a pedal sensor, a value from a cylinder pressure sensor, a value from a wheel speed sensor, or an EPB signal to perform EPB control and drive a main braking valve and a braking motor for the main braking of a vehicle, and to drive an additional braking valve for the additional braking, a sub-control section configured in a second area to receive one or more of the value from the pedal sensor, the value from the wheel speed sensor, or the EPB signal to perform the EPB control and drive the main braking valve and the braking motor through a bypass circuit, and a connection bus connecting the first and second areas mounted in one box to transfer signals between the main and sub-control sections.

To provide an improved brake system.SOLUTION: The invention relates to a brake system comprising: an actuating device, in particular a brake pedal; a first piston-cylinder unit having two pistons subjecting the brake circuits to a pressure medium via a valve device, where one of the pistons can be actuated by the actuation device; a second piston-cylinder unit having an electric motor drive, a transmission, and at least one piston to supply at least one of the brake circuits with a pressure medium via a valve device; and a motor pump unit with a valve device to supply the brake circuits with a pressure medium, also comprising a hydraulic stroke simulator with a pressure or working chamber which is connected to the first piston-cylinder unit.SELECTED DRAWING: Figure 1

A driving dynamics system for a vehicle may include a primary control unit for detecting and / or generating steering commands and braking commands; a brake system having first and second electrohydraulic pressure supply units; four hydraulically actuatable wheel brakes of respective wheels; electrically actuatable brake pressure adjustment valves; and an electric steering actuator for actuating at least one axle. The driving dynamics system may implement a steering command during normal operation to actuate at least one of the pressure supply units and the steering actuator and / or, to implement a braking command during normal operation, to actuate at least the second pressure supply unit and at least the brake pressure adjustment valves for a wheel-specific pressure adjustment and, in a fault case, to actuate at least the first pressure supply unit and at least the brake pressure adjustment valves for a wheel-specific pressure adjustment.

The invention relates to a modulator system for a brake system of a trailer vehicle (10) having a pneumatic brake apparatus, having a first modulator unit (18, 18a, 18b). The first modulator unit (18, 18a, 18b) has a primary modulator (51, 52) and a first electronic control unit (50, 50a, 50b), wherein the primary modulator (51, 52) has an input (90) for control pressure, an input (86) for supply pressure, an output (87) for brake pressure, and an electrical input (93, 94) for electrical signals of the first electronic control unit (50, 50a, 50b). The first electronic control unit (50, 50a, 50b) has an input (96) for wheel speed signals and an output (95) for connecting to the electrical input (93, 94) of the primary modulator (51, 52). The primary modulator (51, 52) can be controlled by the first electronic control unit (50, 50a, 50b). According to the invention, a second modulator unit (19) is provided in a particular way.

The embodiment of the invention relates to a method for operating a brake system and the brake system. The invention relates to a method for operating a brake system in a vehicle. In one step, first calibration data is transmitted from a first sensor arranged on a brake pedal of the vehicle to a first brake product, and / or second calibration data is transmitted from a second sensor arranged on a brake pedal of the vehicle to a second brake product. First sensor data and second sensor data are generated by the first sensor and the second sensor as a function of actuation of the brake pedal by the user. The first sensor data and the second sensor data are transmitted to the first brake product and / or the second brake product. If it is determined that the first brake product and the second brake product are present in the vehicle, the brake system is operated in a first operating state. If it is determined that only the first brake product or only the second brake product is present in the vehicle, the brake system is operated in a second operating state.

An agricultural train assembly having a tractor and at least one implement coupled to the tractor through a tongue. The assembly has a tractor braking system that selectively applies tractor brakes, an implement braking system that selectively applies implement brakes, a controller that selectively applies the implement braking system, a sensor that communicates with the controller to identify a push force applied to the tongue, the push force being the amount of force applied by the at least one implement towards the tractor. Wherein, the controller communicates with the sensor to identify the push force and compares the push force to a push threshold and when the push force is greater than the push threshold, the controller instructs the implement braking system to apply a burst braking procedure.

Disclosed is a brake system. The brake system includes: an electronic control unit configured to perform an attitude control function based on a wheel speed sensor value received from each of a plurality of wheel speed sensors installed in a plurality of wheels of a vehicle, identify a failure of the attitude control function, and provide a braking signal to perform the attitude control function according to the identified result; and a brake configured to perform a braking control on a corresponding wheel based on the braking signal, wherein the electronic control unit is configured to identify a failure of at least one of the plurality of wheel speed sensors while performing the attitude control function, and set an operation mode of an Electronic Stability Control (ESC) according to the identified result.

To provide an improved brake system.SOLUTION: The present invention discloses a brake system including: a drive unit, in particular, a brake pedal 1; a first piston-cylinder unit THZ allowing brake circuits BK1, BK2 to receive a pressure medium through a valve device FV and including two pistons 12, 16, one piston 16 configured to be driven by the drive unit; a second piston-cylinder unit including an electric motor driving body 8, a transmission device 7, and at least one piston 10 for supplying the pressure medium through the valve device to the brake circuit BK1; and a motor pump unit ESP including valve devices HSV, USV, EV, AV for supplying the pressure medium to the brake circuit. The brake system further includes a hydraulic stroke simulator WS including a pressure chamber or an operation chamber connected to the first piston-cylinder unit.SELECTED DRAWING: Figure 1

Provided is an apparatus for controlling braking force of a vehicle. The apparatus includes a sensor device that obtains information about an image in front of the vehicle and travel information of the vehicle, and a controller that determines a road surface state including a left road surface state and a right road surface state based on the information about the image and the travel information, and controls a braking force of a left wheel of the vehicle and a braking force of a right wheel of the vehicle based on the left road surface state and the right road surface state of the vehicle, respectively.

A brake system comprises an electronic stability control (ESC) module defining a first interconnect passage, and a pressure supply unit (PSU) module defining a second interconnect passage in fluid communication with the first interconnect passage. The ESC module includes a first pump configured to transfer brake fluid from the PSU module and to a plurality of wheel brakes, and a prime valve configured to selectively control fluid communication between the first interconnect passage and an inlet of the first pump. The PSU module includes a second pump configured to transfer the brake fluid from a fluid reservoir to the first interconnect passage, and a bypass fluid passage from the fluid reservoir to the ESC module with an inline check valve allowing fluid flow through the bypass fluid passage from the fluid reservoir and to the ESC module while blocking fluid flow in an opposite direction.

Braking system for a vehicle, comprising: a pedal (101) to which a brake input is applied; an actuator part configured to generate a brake hydraulic pressure in response to the brake input applied to the pedal (101), and comprising a first actuator with a first hydraulic chamber (131) and a second actuator with a second hydraulic chamber (132); Wheel brakes (136, 137) connected to the first actuator and the second actuator; and an auxiliary cylinder (105) with two auxiliary pistons (108, 109) for forming a third hydraulic chamber (106) and a fourth hydraulic chamber (107), which are two hydraulic chambers that are continuously arranged in a housing; wherein the auxiliary cylinder (105) has a first centrally arranged auxiliary piston and a second auxiliary piston connected to the pedal (101), and wherein the first hydraulic chamber (131) is connected to the third hydraulic chamber (106) by a flow path (112, 121) in which a first valve (119) is installed, the second hydraulic chamber (132) is connected to the fourth hydraulic chamber (107) by a flow path (122, 115) in which a second valve (120) is installed, and pressure equalization is performed by the auxiliary cylinder when a difference occurs between the hydraulic brake pressures generated by the first actuator and the second actuator, wherein the fourth hydraulic chamber (107) is connected to a first flow path (115) adjacent to the first auxiliary piston (108) and to a second flow path (116), and wherein the first flow path (115) and the second flow path (116) are connected to the second valve (120), wherein the first auxiliary piston (108) separates the third hydraulic chamber (106) and the fourth hydraulic chamber (107), and wherein, when the flow path through the first auxiliary piston (108) is closed by the pressure difference between the third hydraulic chamber (106) and the fourth hydraulic chamber (107), the braking force is transmitted through the second flow path (116) to the second hydraulic chamber (132).

A brake device for a motor vehicle with two axles, including at least one axle with an electric traction motor for driving and braking at least one wheel arranged on the axle, where energy can be recovered by means of the traction motor during braking. Each wheel has a wheel brake. A pressure supply is provided in the form of a piston-cylinder unit, which can both build up pressure and reduce pressure. The pressure supply forms part of a pressure supply device, having at least two connections, switchably connected by respective valves, to the brake circuits, an ABS / ESP unit and / or an actuating unit. An open-loop and closed-loop control device controls the at least one electric traction motor and components of the pressure supply device such that a braking deceleration can be set by closed-loop control for each brake circuit and / or each axle, with different braking torques at the respective axles.

A brake system may include an actuating device, in particular a brake pedal; a first piston-cylinder unit having two pistons subjecting the brake circuits to a pressure medium via a valve device, wherein one of the pistons can be actuated by the actuation device; a second piston-cylinder unit having an electric motor drive, a transmission at least one piston to supply at least one of the brake circuits with a pressure medium via a valve device; and a motor pump unit with a valve device to supply the brake circuits with a pressure medium. The brake system may also include a hydraulic travel simulator with a pressure or working chamber which is connected to the first piston-cylinder unit.

The invention relates to a brake system (6) for a motor vehicle, comprising two controllers (16, 18), namely a main controller (16) and a secondary controller (18). In this case, the brake system (6) is arranged in such a way that, in a wake-up mode of the brake system (6), when a brake command is input by the driver, the main control unit (16) or the secondary control unit (18) controls the generation of the braking force in accordance with the input brake command in accordance with a situation, i.e. In accordance with whether an emergency braking situation or a non-emergency braking situation is present.

The invention relates to a brake system for a vehicle, comprising at least one brake (1a-1f), at least one sensor (3a-3l) for measuring a temperature of the at least one brake (1a-1f), and a control unit (4). The control unit (4) is configured for receiving an actuating signal demanding a brake actuation, and for receiving temperature data from the at least one sensor (3a-3l), indicating the temperature measured by the at least one sensor (3a-3l). The control unit (4) is further configured for effecting a brake torque of the at least one brake (1a-1f) based on the actuating signal. The control unit (4) is furthermore configured for controlling the brake torque of the at least one brake (1a-1f) based on the temperature data. The invention also relates to a method for controlling a brake system of a vehicle.

A method for operating a braking system (10) in a vehicle is provided. In one step, initial calibration data from a first sensor (4) located on the vehicle's brake pedal (3) is transmitted to a first braking product (1), and / or second calibration data from a second sensor (5) located on the vehicle's brake pedal (3) is transmitted to a second braking product (2). The first and second sensor data are generated by the first and second sensors (4, 5) depending on the user pressing the brake pedal (3). The first and second sensor data are transmitted to the first braking product (1) and / or the second braking product (2). If it is determined that the first braking product (1) and the second braking product (2) are present in the vehicle, the braking system (10) is operated in a first operating state.If it is determined that only the first brake product (1) or only the second brake product (2) is present in the vehicle, the brake system (10) is operated in a second operating state.

A method for operating a braking system in a vehicle. First calibration data are transmitted from a first sensor arranged on a brake pedal of the vehicle to a first braking product and / or second calibration data are transmitted from a second sensor arranged on the brake pedal of the vehicle to a second braking product. First and second sensor data are generated by the first and second sensors according to an actuation of the brake pedal by a user. The first and second sensor data are transmitted to the first and / or second braking product. Based on ascertaining that the first and the second braking products are present in the vehicle, the braking system is operated in a first operating state. Based on ascertaining that only the first braking product or only the second braking product is present, the braking system is operated in a second operating state.

Provided in the present application are a vehicle U-turn control method and apparatus, and a vehicle. The method includes: first, after detecting that a creeping U-turn function is activated, collecting and acquiring, by a vehicle, a steering wheel angle; determining whether the vehicle currently satisfies a preset creeping U-turn condition according to the steering wheel steering angle; when the creeping U-turn condition is satisfied, acquiring, by the vehicle, transmission gear position information and transfer case gear position information, and acquiring a target vehicle speed of the vehicle during a creeping U-turn process according to the information; then calculating and acquiring a braking pressure force of an inner front wheel and a braking pressure force of an inner rear wheel when the vehicle performs a U-turn according to the steering wheel angle, a wheelbase and a track width of the vehicle; and finally, according to the target vehicle speed, the braking pressure force of the inner front wheel and the braking pressure force of the inner rear wheel, controlling the vehicle to perform a creeping U-turn. By means of the present solution, a vehicle U-turn turning radius can be reduced, and an automatic speed control during a turning process can be realized, thereby improving the smoothness and controllability of a U-turn driving.

The invention relates to a sensor assembly (1) for a vehicle, having at least two controllers (ECU1, ECU2), which each comprise at least one evaluation and control unit (10, 10A, 10B, 10C), and a plurality of sensor elements (DF1, DF2, DF3, DF4, DF5, DF6), which are each associated with a brakeable vehicle wheel (VL, VR, HL, HR) and one of the evaluation and control units (10A, 10B, 10C) of the controllers (ECU1, ECU2) and are designed to detect at least one physical variable of the associated vehicle wheel (VL, VR, HL, HR) and to output it directly as an output signal (ASVL, ASVR, ASHL1, ASHR1, ASHL2, ASHR2) to the associated evaluation and control unit (10A, 10B, 10C), wherein the controllers (ECU1, ECU2) are each designed to perform at least one braking function of the vehicle (1) on the basis of the detected physical variables of the brakeable vehicle wheels (VL, VR, HL, HR), wherein at least at the brakeable vehicle wheels (VL, VR) of a first vehicle axle (VA) a sensor element (DF1, DF2) is each provided, the output signals (ASVL, ASVR) of which are output to different evaluation and control units (10B, 10C) provided in a common controller (ECU2), and wherein at least at the brakeable vehicle wheels (VL, VR) of a second vehicle axle (HA) two sensor elements (DF3, DF5; DF4, DF6) are each provided, the output signals (ASHL1, ASHL2, ASHR1, ASHR2) of which are output to evaluation and control units (10A, 10B) provided in different controllers (ECU1, ECU2), the evaluation and control units (10B, 10C) associated with the first vehicle axle (VA) being designed to output the received output signals (ASVL, ASVR) each to at least one evaluation and control unit (10A) of the other controller (ECU1), so that each controller (ECU1, ECU2) receives from all brakeable vehicle wheels (VL, VR, HL, HR) corresponding at least one detected physical variable, and also to a multi-circuit braking system of such a sensor assembly (1).

To provide an improved brake system.SOLUTION: The invention relates to a brake system comprising: a brake pedal (1); a first piston-cylinder unit (THZ) having two pistons (12,16) subjecting the brake circuits (BK1, BK2) to a pressure medium via a valve device (FV), wherein one of the pistons (16) can be actuated by the actuation device; a second piston-cylinder unit having an electric motor drive (8), a transmission (7) and at least one piston (10) to supply at least one of the brake circuits (BK1) with a pressure medium via a valve device; and a motor pump unit (ESP) with a valve device (HSV, USV, EV, AV) to supply the brake circuits with a pressure medium, also comprising a stroke simulator (WS) with a pressure or working chamber which is connected to the first piston-cylinder unit.SELECTED DRAWING: Figure 1

The invention relates to a braking system (6) for a motor vehicle with two control units (16, 18), namely a primary control unit (16) and a secondary control unit (18). The braking system (6) is configured such that, in a wake-up mode of the braking system (6), when a braking command is entered by a driver, either the primary control unit (16) or the secondary control unit (18) controls the generation of a braking force depending on the situation, namely whether a critical or a non-critical braking situation exists.

Enabling stable braking regardless of influences from aging or similar factors of a braking device. A brake ECU 30 is provided for a vehicle 1 with a brake device 11, which can adjust a braking force depending on the supplied hydraulic pressure, wherein the vehicle 1 comprises: a main pressure sensor 17 configured to measure the hydraulic pressure supplied to the brake device 11; and a G-sensor 44 and a wheel speed sensor 12 configured to detect acceleration of the vehicle 1 and to measure acceleration information, wherein the brake ECU 30 is configured to include: a pressure command value calculation section 36 configured to determine a hydraulic pressure to be supplied to the brake device 11 at a time of deceleration of the vehicle 1 based on a preset coefficient and to cause the determined hydraulic pressure to be supplied to the brake device 11;and a calculation section 31 for the brake torque coefficient, which is configured to learn a coefficient candidate that is a candidate for changing the coefficient, and to change the coefficient based on a relationship between the hydraulic pressure and the acceleration in the coefficient candidate.

The invention relates to a vehicle dynamics system comprising: - a primary control unit (M-ECU) for acquiring and / or generating steering and braking commands; - a braking system with a first brake module (BM1) comprising a first electro-hydraulic pressure supply unit (DV1) and with a second brake module (BM2) comprising a second electro-hydraulic pressure supply unit (DV2); - four hydraulically actuated wheel brakes (RB1-RB4) assigned to wheels (R1-R4); - electrically actuated brake pressure control valves (EV1-EV4, AV1-AV4, SV1-SV4); - a steering actuator (EPS) for actuating at least one axle; - at least one bus connection for communication between a control unit (ECUBM1) of the first brake module (BM1) and the primary control unit (M-ECU);wherein the first brake module (BM1) and the second brake module (BM2) are housed in separate enclosures, wherein the vehicle dynamics system is configured to actuate at least the second pressure supply unit (DV2) and at least the brake pressure adjusting valves (EV1-EV4, AV1-AV4, SV1-SV4) for wheel-specific pressure adjustment in order to implement a braking command during normal operation, and in a first fault case at least the first pressure supply unit (DV1) and at least the brake pressure adjusting valves (EV1-EV4, AV1-AV4, SV1-SV4) for wheel-specific pressure adjustment, wherein the primary control unit (M-ECU) is configured to send control commands to the brake system, which are executed by the first brake module BM1 (primary function) and the second brake module BM2 (secondary function), wherein the control commands include information about target pressures or target pressure profiles.

The disclosure relates to a method for releasing an electro-hydraulic parking brake of a motor vehicle, wherein a vehicle status is determined, in dependence on the vehicle status, a pre-charging pressure demand is determined by a control device, in the event of a pre-charging pressure demand, a hydraulic pre-charging pressure is generated by a pressure generating unit, and in the event of a parking brake release demand, the pre-charging pressure is directed to the electro-hydraulic parking brake.

A braking system for a motor vehicle with two control devices, namely a primary control device and a secondary control device. The braking system is configured in such a way that, in a wake-up mode of the braking system, when a driver inputs a braking command, either the primary control device or the secondary control device controls the generation of a braking force in dependence on the input braking command, depending on the situation, namely depending on whether a critical or a non-critical braking situation exists.

To provide a method for operating a brake system in a vehicle.SOLUTION: At one step, first calibration data is transmitted from a first sensor to a first brake product arranged on a brake pedal of a vehicle, and / or second calibration data is transmitted from a second sensor to a second brake product arranged on the brake pedal of the vehicle. The first and the second sensor data are generated by first and second sensors as a user operates the brake pedal. The first and the second sensor data are transmitted to the first brake product and / or second brake product. When it is confirmed that the first brake product and the second brake product exist in the vehicle, the brake system is operated in the first operating state. When it is confirmed that only the first brake product or only the second brake product exists in the vehicle, the brake system is operated in the second operating state.SELECTED DRAWING: Figure 1

Electronic hydraulic brake device with: a brake unit (10) comprising a master brake unit (1) configured to supply a plurality of wheel cylinders (3) with hydraulic brake pressure by means of a motor operation, and an auxiliary brake unit (2) connected to the master brake unit (1) in such a way that it is filled with high hydraulic brake pressure and configured to supply the plurality of wheel cylinders (3) with hydraulic brake pressure when an operational fault of the master brake unit (1) occurs; a first control unit (200) designed to control the actuation of the brake unit (10) and configured to control the auxiliary brake unit (2) such that it is actuated when an operational fault of the main brake unit (1) occurs; and a second control unit (300) configured to assist part of the control of the main brake unit (1) controlled by the first control unit (200) and the control of the auxiliary brake unit (2), where the first and second control units (200, 300) can determine through communication whether the state of the other unit is normal, characterized by that if the investigation result indicates that one of the first or the second control unit (200, 300) is operating abnormally, the other of the first and second control units (200, 300) performs a recovery operation in which the control unit that is operating abnormally is forcibly reset.

To provide an improved brake system.SOLUTION: A two-box brake system includes: a first piston-cylinder unit which has a motor-driven body and a transmission device as a first box; and an ESP unit for supplying a pressure medium to a wheel brake as a second box. The first piston-cylinder unit has a pressure supply piston for supplying the pressure medium to the ESP unit through first and second hydraulic lines. An emergency ABS function without the ESP unit is adapted to be executed using the first piston-cylinder unit and a separation valve. The emergency ABS function is executed so that pressures supplied to the wheel brake of the first shaft and the wheel brake of the second shaft are separately adjusted, or the emergency ABS function in an emergency operation without a motor pump unit of the ESP unit is adapted to be executed using valves of the first piston-cylinder unit and the ESP unit.SELECTED DRAWING: Figure 1

The invention relates to a driving dynamics system for a vehicle, comprising: - a primary control unit (M-ECU) for detecting and / or generating steering commands and braking commands; - a braking system with a first braking module (BM1) comprising a first electrohydraulic pressure supply unit (DV1) and with a second braking module (BM2) comprising a second electrohydraulic pressure supply unit (DV2); - four hydraulically actuated wheel brakes (RB1-RB4) assigned to wheels (R1-R4); - electrically actuated brake pressure adjustment valves (EV1-EV4, AV1-AV4, SV1-SV4); - a steering actuator (EPS) for actuating at least one axle; - at least one bus connection for communicatively connecting a control unit (ECUBM1) of the first braking module (BM1) to the primary control unit (M-ECU);wherein the first brake module (BM1) and the second brake module (BM2) are accommodated in separate housings, wherein the driving dynamics system is designed to control at least the second pressure supply unit (DV2) and at least the brake pressure adjustment valves (EV1-EV4, AV1-AV4, SV1-SV4) for a wheel-specific pressure setting in order to implement a braking command in normal operation and, in a first fault case, at least the first pressure supply unit (DV1) and at least the brake pressure adjustment valves (EV1-EV4, AV1-AV4, SV1-SV4) for a wheel-specific pressure setting, wherein the primary control unit (M-ECU) is designed to send control commands to the braking system, which are executed by the first brake module BM1 (primary function) and the second brake module BM2 (secondary function), wherein the control commands include information about target pressures or target pressure curves.;

In a method for controlling a hydraulic brake system in a vehicle, wherein the hydraulic brake system is equipped with a hydraulic pump, the hydraulic pump is activated to hold the vehicle at rest and brake fluid is conveyed via open inlet valves to the wheel braking device of a first vehicle axle. The inlet valves on wheel braking devices of a second vehicle axle are at least partially open in response to a change in the brake pressure requirement in the brake system, and at the same time the outlet valves on said wheel braking devices remain closed while the vehicle is being held at rest.