B60T8/17636

Signal-processing device for a vehicle having an ABS unit, vehicle, signal-processing method for a vehicle, computer programme and control unit
11745709 · 2023-09-05 · ·

The invention relates to a signal-processing device (402) for a vehicle having an ABS unit (404) and multiple wheels, each of which is assigned a sensor (S1, S2, S3, S4) for wheel signal generation. The signal-processing device (402) is designed to detect (602) a failure of a wheel signal, to form (604) a substitute signal for the failed wheel signal using the wheel signal of at least one sensor assigned to a wheel that is not affected by the failure, and to supply (606) the substitute signal to the ABS unit (404). The invention also relates to an ABS system (400) having the signal-processing device (402) and an ABS unit (404), a vehicle having the ABS system (400), a signal-processing method for a vehicle having an ABS unit (404), a computer programme having computer code for carrying out the signal-processing method, as well as a control unit containing the computer programme.

Antilock braking systems, devices, and methods using sensorized brake pads

Various antilock braking systems, devices, and methods using sensorized brake pads are disclosed. In some embodiments, the present disclosure provides a method for improving the performance of an antilock braking (ABS) and anti-slip regulation (ASR) system of a vehicle. The method can include detecting the actual value of the coefficient of friction (e.g., between a tire and the ground), updating the coefficient of friction during braking using the braking torque data derived from at least one braking pad of each wheel, and adjusting brake force. For example, the brake force can be adjusted as a function of and/or to be approximately equal to the value of the actual tire-road friction during braking.

ROAD SURFACE DETECTION USING ANTI-LOCK BRAKING SYSTEM PRESSURE SENSOR
20230347853 · 2023-11-02 ·

A road surface detection system, in one example the system includes a hydraulic unit of an anti-lock braking system, the hydraulic unit including a preload adjuster, and a plurality of pressure sensors configured to generate pressure sensor data. The system also includes a controller configured to receive the pressure sensor data from the plurality of pressure sensors, determine a target preload pressure level, compare the pressure sensor data with the target preload pressure level to calculate a pressure differential between the pressure sensor data and the target preload pressure level, determine a road surface based upon the calculated pressure differential, and regulate the preload adjuster to change the pressure within the hydraulic unit based upon the road surface.

SURGICAL TREATMENT INSTRUMENT

This instrument for surgical treatment, in particular for tenolysis, tenotomy or neurolysis, comprises a main body and a distal part. The distal part has a curved portion forming a hook and is provided with a cutting blade on the inner side of the hook. The main body has a longitudinal lumen for passage of fluid from a proximal end to a distal end of the main body, as well as an elbow with concavity facing the same side as the hook such that the main body has, in the vicinity of its distal end, an injection channel which is in fluidic connection with the lumen via an over-pressure chamber.

Controller and control method
11377095 · 2022-07-05 · ·

The invention obtains a controller and a control method capable of appropriately assisting with an operation by a driver while preventing a motorcycle from falling over. In the controller and the control method according to the invention, in a control mode to make the motorcycle perform an automatic cruise deceleration operation, automatic deceleration that is deceleration of the motorcycle generated by the automatic cruise deceleration operation is controlled in accordance with a lean angle of the motorcycle.

Selective friction brake allocation during taxi
11400900 · 2022-08-02 · ·

An aircraft or other vehicle includes a system and method for selectively allocating which friction brakes of a plurality of friction brakes are utilized in response to a braking demand. Said differently, the present disclosure provides a system and method that includes dynamically switching which friction brakes of a plurality of friction brakes are active (e.g., in use) at a given time in response to a braking demand. This dynamic switching may not only be based on the received braking demand (e.g., from a pilot or auto-braking module), but may also be based on one or more of the following: respective measured brake parameters of the plurality of friction brakes (e.g., temperature, extent-of-wear), aircraft parameters, external parameters, and respective calculated brake conditions.

INVERSE TYRE MODEL FOR ADVANCED VEHICLE MOTION MANAGEMENT

A control unit (130, 140) for controlling a heavy duty vehicle (100), wherein the control unit is arranged to obtain input data indicative of a desired wheel force (Fx, Fy) to be generated by at least one wheel (210) of the vehicle (100), and to translate the input data into a respective equivalent wheel speed or wheel slip to be maintained by the wheel (210) to generate the desired wheel force (Fx, Fy) based on an inverse tyre model (f.sup.−1) for the wheel (210), wherein the control unit (130, 140) is arranged to obtain the inverse tyre model in dependence of a current operating condition of the wheel (210), and wherein the control unit (130, 140) is arranged to control the heavy duty vehicle (100) based on the equivalent wheel speed or wheel slip.

Method and device for controlling longitudinal dynamics in a motor vehicle during an autonomous driving operation

A method for controlling longitudinal dynamics in a motor vehicle during an autonomous driving operation, where the presence of a front vehicle traveling ahead of the vehicle is ascertained with the aid of a surround sensor system; ascertaining at least one longitudinal dynamics variable of the front vehicle, which describes the longitudinal vehicle dynamics of the front vehicle, with the aid of the surround sensor system; and ascertaining at least one variable, which is used in a brake control system of the motor vehicle, as a function of the longitudinal dynamics variable of the front vehicle.

Method for regulating a vehicle-actual-deceleration in a vehicle with an ABS brake system

A method for regulating a vehicle-actual-deceleration in a vehicle with an ABS brake system includes detecting the vehicle-actual-deceleration; determining a target vehicle deceleration and detecting at least one actual wheel rotational behavior. The method further includes calculating actuation times for actuation of pressure control valves of the ABS brake system associated with the wheels of the first vehicle axle and the wheels of the further vehicle axle and determining correction actuation times if at least one of the respective calculated actuation times is less than a minimum actuation time associated with the respective pressure control valve. Calculation of each of the respective actuation times is carried out at least for all of a first number of pressure control valves with which wheels are associated whose rotational behavior follows the at least one actual wheel rotational behavior.

Braking control method according to friction of road surface

A braking control method according to friction of road surface includes computing a real-time wheel speed according to a signal received from a wheel speed sensor; storing the real-time wheel speed as a wheel initial velocity when a braking event occurs; determining a relative-peak value according to the real-time wheel speed; estimating a vehicle deceleration according to the relative-peak value and the wheel initial velocity; computing an adjustment parameter according to the vehicle deceleration and a tire slip threshold, wherein the adjustment parameter reflects friction coefficient of road surface; and adjusting time length of an enhancement stage in an enhance-pressure control period of a stepped pressure-increasing phase according to the adjustment parameter; or adjusting time length of a reduction stage in a reduce-pressure control period of a stepped pressure-decreasing phase according to the adjustment parameter.