摘要:
The present invention relates to a method for improving the control behavior of a controlled automotive vehicle system, in particular an anti-lock brake system (ABS), a driving stability control system (ESP), or another brake system extended by other functionalities, wherein evaluated wheel dynamics data (dyn) and evaluated wheel slip data (slip) are taken into account as a criterion for the initiation of a control intervention for each individual wheel, and the sum thereof is compared to a control threshold (ψ).For a better weighting of wheel dynamics and slip, the invention discloses determining evaluation parameters (α, β) that can be modified in response to driving conditions and taking them as a reference in the evaluation of the wheel dynamics data (dyn) and in the evaluation of the wheel slip data (slip).
摘要:
A correction method in which characteristic curves and/or correction values are produced, by way of which the drive current for one or more electrically activated hydraulic values operated in an analog fashion is measured during a pressure regulation in such a way that, during the operation of an anti-lock regulation, one or a respective characteristic curve is first prescribed and then the prescribed characteristic curve is corrected, particularly in a learning process, wherein, after a pressure build-up phase, the current pressure model value (Pmod) is compared to and/or analyzed using a model locking pressure level (Pmax).
摘要:
In a method for the adaptive control of the hydraulic pump of a brake system containing low pressure accumulator (NDS1,2) which take up the pressure fluid discharged in the case of control from the wheel brakes and which are evacuated by the hydraulic pump (HP), first the brake pressure pattern (pR) is determined for each individual wheel with the aid of a wheel pressure model. Then a volume model (VM1,2) is formed on the basis of the wheel pressure model for each individual brake circuit, which volume model indicates, by way of approximation, the filling level of the low pressure accumulators (NDS1,2). The maximum filling level (MaxV) and the control frequency or the time interval (T) between two successive brake pressure decreasing phases (Ph2) are determined. The delivery capacity of the hydraulic pump (HP) is so dimensioned that the time interval (T) between two successive brake pressure decreasing phases (Ph2) is just adequate for completely evacuating the low pressure accumulators (NDS1,2).
摘要:
The speed variation of the driven wheels is analyzed in a method of recognizing critical drive train oscillations which require countermeasures during an (ABS) controlled brake maneuver. The occurrence of oscillations having a frequency typical of drive train oscillations is established. When oscillations with this frequency occur, the duration of the oscillating process is established on each individual wheel, or the number of the successive oscillations or semi-wave oscillations is counted. When a predetermined counter reading is reached, an oscillation recognition is indicated if, at that time, the vehicle acceleration is above a predetermined limit value and if oscillation recognition has not yet been triggered on the other driven wheel. To dampen the oscillations, switch-over to a special control is effected for a defined interval. The commencement of the special control prevents braking pressure reduction, the pressure is maintained constant, or at most a delayed pressure increase is allowed.
摘要:
The present invention discloses a method of determining correction factors by which the different tire-tread circumferences are ascertained and compensated, wherein a short-time correction factor (KZ.sub.Rn) and a long-time correction factor (LZ.sub.RN) is developed for each wheel, the deviation (D.sub.Rn) of the short-time correction factor from the long-time correction factor is determined and the deviation is weighted by way of a band-pass filter (3), wherein subsequently a long-time average value (LM.sub.Rn) of the weighted deviation (D'Rn) is developed, and a partial value (TW.sub.Rn) of the long-time average value (LM.sub.Rn) is assessed, as a function of the driving condition, for the correction and adaption of the long-time correction factor (LZ.sub.Rn).
摘要:
A correction method in which characteristic curves and/or correction values are produced, by way of which the drive current for one or more electrically activated hydraulic values operated in an analog fashion is measured during a pressure regulation in such a way that, during the operation of an anti-lock regulation, one or a respective characteristic curve is first prescribed and then the prescribed characteristic curve is corrected, particularly in a learning process, wherein, after a pressure build-up phase, the current pressure model value (Pmod) is compared to and/or analyzed using a model locking pressure level (Pmax).
摘要:
A method for tracking trackable objects using a medical tracking device, the tracking device being a camera or an EM transmitter, during a medical workflow comprising a plurality of workflow steps, wherein each trackable object has at least one marker and the method comprises the steps of: —acquiring a set of camera positions, wherein each tracking device position is associated with at least one workflow step; —identifying a workflow; —sequentially and automatically moving the tracking device to the camera positions associated with the workflow steps; and—performing a tracking step only when the tracking device is in a fixed position.
摘要:
Method and control device for determining a steering angle of a motor vehicle, wherein a theoretical steering angle is calculated by a vehicle model and a measured steering angle is determined with a steering angle sensor, and the difference between the measured and theoretical steering angles is determined, wherein at least one data record including a number of successive measured values is acquired, and a correction constant for the measured steering angle is determined from the mean value of the differences between the theoretical steering angle and the measured steering angle. According to the invention, a confidence level, which changes incrementally between successive data records, is calculated by travel conditions present during the acquisition of the data record and/or an analysis of the data record.
摘要:
An assembly for providing haptic effects includes a panel adapted to be mated to another structure, a frame placed around and spaced apart from the panel, at least one flexible coupling to connect the panel to the frame, a display connected to the panel so as to be stationary with respect to the panel, and a touch screen assembly connected to the frame. The touch screen assembly is placed over the display.
摘要:
The invention relates to a hair removal apparatus (100) having a base body (10) and a slide (20), which is mounted thereon to be movable (displaceably). At least one wet shaver unit (40) comprising a razor blade, such as a blade cartridge for wet shaving, is mounted on the slide. Due to the mobility of the slide (20), this wet shaver unit (40) is protected from damage in the event of impact of the hair removal apparatus, e.g., in a fall to the floor. Certain target positions of the slide (20) can be secured with a slip clutch, such that they become unlocked on exceeding a minimum force that is acting and thereby release a movement of the slide.