85results about "ESP control systems" patented technology

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 actuable wheel brakes of respective wheels; electrically actuable 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.

An optimization method and an optimization system for vehicle braking system parameters is disclosed. The method includes (i) performing a setting step that includes setting a goal for optimization of the vehicle braking system parameters and determining vehicle braking system parameters to be optimized, and setting working conditions according to the vehicle braking parameters to be optimized, (ii) performing a simulation step that includes establishing a simulation environment and simulating the set working conditions, (iii) performing a calculating step that includes, for each set of vehicle braking system parameters, extracting vehicle signals associated with braking performances from a simulation result, and calculating evaluation values of the braking performances of each set of vehicle braking system parameters based on the vehicle signals and the goal, (iv) performing a judging step that includes judging whether the evaluation values of the braking performances reach the goal; if no, adjusting the vehicle braking system parameters and repeatedly iterating the simulation step and the calculating step until the goal is reached; if yes, performing an output step that includes outputting the vehicle brake system parameters and the corresponding evaluation values. The simulation environment can be used to replace a real vehicle, and the simulation efficiency is improved.

The invention relates to a vehicle braking system parameter optimization method and an optimization system thereof. The method comprises the following steps: a setting step: setting a vehicle braking system parameter optimization target, determining a to-be-optimized vehicle braking system parameter, and setting a working condition according to the to-be-optimized vehicle braking parameter; a simulation step of establishing a simulation environment and simulating a set working condition; a calculation step: extracting a vehicle signal related to the braking performance from the simulation result for each group of vehicle braking system parameters, and calculating an evaluation value of the braking performance of each group of vehicle braking system parameters based on the vehicle signal and a target; a judgment step: judging whether the evaluation value of the braking performance reaches a target or not, if not, adjusting parameters of a vehicle braking system and repeating iteration to perform the simulation step and the calculation step until the evaluation value reaches the target, and if yes, performing an output step; and an output step: outputting the vehicle braking system parameters and the corresponding evaluation values. According to the invention, the simulation environment can be used to replace a real vehicle and the simulation efficiency can be improved.

The invention relates to a brake system and a control method thereof. The brake system includes: an electronic control unit that performs a posture control function based on wheel speed sensor values received from wheel speed sensors provided in wheels of a vehicle, determines whether the posture control function fails, and provides a brake signal to perform the posture control function according to a result of the determination; and a brake unit that performs brake control on the wheels on the basis of the brake signal, in which the electronic control unit determines whether a wheel speed sensor has failed or not when the posture control function is executed, and determines the operation mode of the ESC on the basis of the determination result.

Disclosed is electro mechanical brake system including: first pedal sensor, second pedal sensor, and third pedal sensor configured to detect pedal effort applied to brake pedal and generate first braking signal, second braking signal, and third braking signal; first EMB, second EMB, third EMB, and fourth EMB respectively installed in plurality of wheels of vehicle and configured to provide braking force to plurality of wheels of vehicle; first brake controller connected to first pedal sensor, and configured to obtain first target braking torque based on first braking signal and transmit first target braking torque to first, second, third and fourth EMBs; and second brake controller connected to first pedal sensor, second pedal sensor, and third pedal sensor, and configured to obtain second target braking torque based on first braking signal, second braking signal, and third braking signal and transmit second target braking torque to first, second, third and fourth EMBs.

The present invention relates to a redundant safety control system based on wire control braking, comprising an electric power-assisted braking mechanism and an electronic vehicle body stability system connected via at least two CAN buses, wherein the information transmitted by the two CAN buses is mutually backed up; the electric power-assisted braking mechanism and the electronic vehicle body stability system are also connected to a vehicle controller, a motor controller and an electronic parking system via one of the CAN buses. The fault risk identification and corresponding redundant safety control of the wire control braking system are realized, the strict requirements of intelligent vehicles for redundant braking safety are met, the braking safety of the vehicle is improved, and the loss of life and property caused by automobile traffic safety accidents is reduced.

Disclosed is a number of variations that may include a method, system, or computer product useful in determining an intended yaw or yaw rate that a driver desires using a model, comparing the yaw or yaw rate with the actual vehicle yaw or yaw rate to determining a yaw error or yaw rate error, using the yaw error or yaw rate error in a model predictive control to determine the brake pressure required to minimize or reduced to zero the yaw error or the yaw rate error.

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.

Disclosed is a number of variations that may include a method, system, or computer product useful in determining an intended yaw or yaw rate that a driver desires using a model, comparing the yaw or yaw rate with the actual vehicle yaw or yaw rate to determining a yaw error or yaw rate error, using the yaw error or yaw rate error in a model predictive control to determine the brake pressure required to minimize or reduced to zero the yaw error or the yaw rate error.

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.

A method for controlling a force representative of a parking braking of a vehicle, having the steps of: determining, by a data processing unit, a target value of a force representative of a parking braking of the vehicle to be applied, by a first brake caliper,on a first brake disc on the basis of a value of the gradient of the road on which the vehicle is located; determining, by the data processing unit, a value of a first force contribution representative of a service braking of the vehicle applied by a first hydraulic actuator on the first brake disc;determining, by the data processing unit, a value of a second force contribution representative of the parking braking of the vehicle to be applied, by a second electromechanical actuator, on the first brake disc on the basis of a target value of a force representative of a parking braking of the vehicle which can be applied by the first brake caliper on the first brake disc, and of the determined value of the first force contribution representative of a service braking of the vehicle; operating, by the data processing unit, the second electromechanical actuator to apply the determined value of the second force contribution representative of the parking braking of the vehicle on the first brake disc.

The present invention provides a sensor device (1) for a vehicle, the sensor device (1) having at least two control devices (ECU1, ECU2) each including at least one evaluation and control unit (10, 10A, 10B, 10C) and a plurality of sensor elements (DF1, DF2, DF3, DF4, DF5, DF6), each of which is associated with one brakeable wheel (VL, VR, HL, HR) and one of the evaluation and control units (10A, 10B, 10C) of the control devices (ECU1, ECU2), and detects at least one physical quantity of the corresponding wheel (VL, VR, HL, HR) and outputs an output signal (ASVL, ASVR, ASHL1, ASHR1, ASHL2) to the corresponding evaluation and control unit (10A, 10B, 10C). , ASVR2) and the control devices (ECU1, ECU2) are each configured to perform at least one braking function of the vehicle (1) based on detected physical quantities of the brakeable wheels (VL, VR, HL, HR), and at least one sensor element (DF1, DF2) is arranged at each of the brakeable wheels (VL, VR) of the first axle (VA), and output signals (ASVL, ASVR) of the sensor elements (DF1, DF2) are output to different evaluation and control units (10B, 10C) arranged in one common control device (ECU2), and at least two sensor elements (DF3, DF5; DF4, DF6) are arranged at each of the brakeable wheels (VL, VR) of the second axle (HA), and ... first axle (VA), and output signals (ASVL, ASVR) of the second axle (HA) of the second axle (HA), respectively.a sensor device (1) and a multi-path brake system having such a sensor device (1), wherein output signals (ASHL1, ASHL2, ASHR1, ASHR2) of the first axle (DF4, DF6) are output to evaluation and control units (10A, 10B) arranged in different control devices (ECU1, ECU2), and the evaluation and control units (10B, 10C) associated with the first axle (VA) are configured to output the received output signals (ASVL, ASVR) to at least one evaluation and control unit (10A) of the other control device (ECU1), so that each control device (ECU1, ECU2) receives at least one corresponding detected physical quantity from all brakeable wheels (VL, VR, HL, HR);

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.

The present invention comprises a braking system (B) for a vehicle (F), in particular a commercial vehicle. The braking system (B) comprises: a first pressure source (1b); a foot brake valve (2) for receiving a deceleration request from the driver, which is connected to the first pressure source (1a); a first braking module (3); at least one brake actuator (5a, 5b), which is connected to the braking module (3), wherein the first braking module (3) is designed to control a braking force of the at least one brake actuator (5a, 5b) in every braking procedure; at least a first pressure sensor (9a, 9b), which is designed to measure the set pressure of the foot brake valve (2). A deceleration request from the driver can therefore be detected by pressure sensing in every braking procedure, and the rear axle is controllable (for example, in a load-dependent manner) without a complete electronic braking system needing to be implemented.

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.

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.

The invention comprises a brake system (B) for a vehicle (F), in particular a commercial vehicle. The brake system (B) has: a first pressure source (1b); the foot brake valve (2) is used for receiving a deceleration expectation of a driver, and the foot brake valve is connected with the first pressure source (1a); the invention relates to a brake system (1) for a motor vehicle, comprising a first brake module (3), at least one brake actuator (5a, 5b), which is connected to the brake module (3), the first brake module (3) being adapted for adjusting a braking force of the at least one brake actuator (5a, 5b) during each braking, at least one first pressure sensor (9a, 9b) being adapted for detecting the braking force of the at least one brake actuator (5a, 5b), and at least one second pressure sensor (9a, 9b) being adapted for detecting the braking force of the at least one brake actuator (5a, 5b) during each braking. The first pressure sensor is adapted to measure the pressure of the controlled output of the foot brake valve (2). Thus, at each braking, the driver's desire to decelerate can be ascertained by pressure sensing, and the rear axle can be adjusted (for example, in dependence on the load) without the need to implement a complete electronic braking system.

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).

The invention relates to a brake system for a motor vehicle, comprising a hydraulic brake device (10) and an electric brake device (20), which are designed at least partially redundant to one another. In particular, in the event of a failure of the hydraulic component, the braking demand may be electrically assisted.

The invention relates to driver direction control during brake-steered manual driving using model predictive control. A number of variations are disclosed, including methods, systems, or computer products for determining an expected yaw or yaw angular velocity desired by a driver using a model, comparing the yaw or yaw angular velocity to an actual vehicle yaw or yaw angular velocity to determine a yaw error or yaw angular velocity error, and determining a yaw error or yaw angular velocity error. Model predictive control is used to determine the brake pressure required to minimize or reduce yaw error or yaw angular velocity error to zero.

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.