摘要:
A vehicle is described, having at least one sensor for detecting the vehicle environment and having a motion-state actuator for acting on the motion state of the vehicle, the motion-state actuator being provided to act on the motion state of the vehicle in the event of activation of the motion-state actuator, the information detected by the sensor being provided for activating the motion-state actuator when it is intended for the vehicle to turn off and traffic is obstructing such a turning-off action.
摘要:
A speed control for motor vehicles having an input device for the input of a desired speed by the driver, and having a plurality of operating modes which are able to be activated in different speed ranges and differ in their functional scope. A decision unit is provided which automatically undertakes the switchover of the operating mode in the light of the actual speed of the vehicle.
摘要:
A driver assistance system for a motor vehicle has at least one sensor for measuring the distance of the vehicle from an object and a control unit for activating functional groups of the motor vehicle as a function of the measuring result of the sensor. The control unit may be switched between a park-distance control operating mode and a pre-crash operating mode as a function of the speed of the vehicle. A switchover between a cruise-control operating mode and the pre-crash operating mode is dependent on a movement of an object relative to the vehicle as ascertained by the sensor.
摘要:
A cruise controller is provided, which regulates the driving speed of the vehicle not only beyond a certain minimum speed but also at speeds below a preselected critical speed down to standstill of the vehicle. Detecting the traffic situation using a distance sensor allows the vehicle to be automatically started once the driver has responded to a corresponding starting instruction. The starting instruction is effective until a preselected time limit, but, alternatively may also be repeated. However, in any traffic situation, the driver may override the cruise controller by operating the accelerator pedal or the brake pedal.
摘要:
A method for signal evaluation, e.g. with pulse wheels, is described, in which the distance between predeterminable signal edges is determined in a microcontroller that has a CPU, timer, and memory, in that upon the occurrence of signal edges, an interrupt is triggered with which the existing timer values are stored. Based on the difference between predeterminable timer values, time intervals are determined which are inversely proportional to the velocity or speed. So that it is possible to use timers with a relatively low bit count, for example 16 bits, the numerical values obtained when there is a timer overflow are also determined and are taken into account in the determination of the distances. If drum stores are used, only four bits per drum store value are required, one check bit and three bits as an overflow counter.
摘要:
In a method for determining the position of an object with reference to a measurement device having an optical transmitter which emits a light beam at a varying transmission angle, and having an angularly resolving optical receiver spaced away from the transmitter, a conclusion being drawn, from the respective transmission angle and from the respective angle at which the receiver receives radiation reflected from the object (reception angle), as to the resolution cell, defined by the angular resolution of the transmitter and the receiver, in which the object is located, the light beam emitted from the transmitter is modulated. The phase difference between the modulation of the transmitted light beam and the modulation of the received radiation is measured. From the phase difference, the position of the object within the respective resolution cell is calculated.
摘要:
A method and device for assisting in driving a vehicle, particularly a motor vehicle, having a surroundings detector for detecting at least a partial area of the surroundings of the vehicle, an output device for the output of information concerning the vehicle surroundings obtained from the surroundings detection to a driver, and an evaluation unit for determining a risk level based on the vehicle-surroundings information. To facilitate driving of the vehicle, it is provided that at least a portion of the vehicle-surroundings information provided for determining the risk level, and the risk level determined by the evaluation unit are output continuously by the output device to the driver during operation of the vehicle.
摘要:
A method and a device for automatic triggering of deceleration of a vehicle for preventing a collision, which is accomplished by the fact that a variable, which represents a probability of collision with another vehicle, must exceed a predefinable threshold value, and the threshold value is variable as a function of the driver's response, the current driving situation, or the ambient situation. To determine the change in the threshold value, signals from a steering angle sensor, a brake pedal sensor, an accelerator pedal sensor, a device for determining the speed of the vehicle, a device for determining the uphill or downhill slope of the road, a device for determining the vehicle yaw rate, a device for determining the vehicle float angle or a device for detecting stationary and moving objects in the vicinity of the vehicle, in particular in the area in front of the vehicle, are analyzed.
摘要:
An apparatus is described for assisting driving of a vehicle having at least two driver assistance systems and having an output device or element for communicating information items of at least one of the driver assistance systems to a driver of the vehicle. To relieve the strain on the driver, a control device or element, configured as an information coordinator and connected at its input side to the driver assistance systems and at its output side to the output device is provided for controlling information items of the driver assistance systems to be communicated to the driver.
摘要:
To provide a method of processing output or base signals (S), in particular intermediate frequency output or base signals, from at least one device, in particular at least one radar device, for determining a distance (d), in particular a small distance on the order of magnitude of approximately zero meters to approximately 7 meters, of an object, by which it is possible to obtain from the raw signals, i.e., the output or base signals, distance information with respect to at least one object located in the detection or sensing range of the device, the following steps are provided: (a) Adaptively determining the background signal (S0) by localized filtering of the output or base signal (S) using at least one localized filter having a specified width (B); (b) Correcting the background of the output or base signal (s) by (b.1) subtracting the determined background signal (S0) from the output or base signal (S) and (b.2) forming a signal, in particular (s=abs (S−S0)), for example, from the difference (S−S0) of the output or base signal (S) and the background signal (S0); (c) Low-pass filtering, in particular temporal low-pass filtering, of the absolute value signal (s); (d) Forming a correlation signal (k=korr(s)) by correlating, in particular folding, the low-pass filtered absolute value signal (s) with at least one reference maximum having a half-value width; and (e) Determining the at least one object maximum (M) using at least one location-variable, adaptive threshold value (t) which may be determined from the correlation signal (k).