Abstract: A system for controlling at least one of the slip threshold and the time period for an extended wheel slippage for a vehicle that is operating in the off-road ABS mode. When driving in a curve pattern and/or at high speeds, the individual wheel speeds are controlled with a lower slip threshold and/or shorter time period for the extended wheel slippage than when driving straight ahead and/or at a lower vehicle speed.

Abstract: The invention concerns a pressure regulator module for a motor vehicle pneumatic braking system, in particular a utility vehicle. The pressure regulator module is used to control or regulate on the basis of the wheel slip braking pressure applied on two separate working connections and comprises a two-way valve assembly consisting of a relay valve for each conduit. The invention is characterized in that, only one pressure regulating valve in the form of a 3/2-way valve is assigned to the control inputs of each of the relay valves, thus providing a pressure regulating valve easy and economical to manufacture.

Abstract: A method of generating a reverse driving signal for a vehicle includes the step of activating an actuator, such as a vehicle stop light switch, a predetermined number of times within a predetermined period of time. A braking system for a vehicle includes an actuator, such as a stop light switch that is actuatable to provide a reverse driving signal indicative of brake pedal operation, an ECU that is electrically connected with the actuator for receiving the reverse driving signal, and a vehicle accessory, such as a back-up alarm, that is electrically connected with the ECU, the ECU being controlled as a function of the reverse driving signal.

Abstract: A system for controlling at least one of the slip threshold and the time period for an extended wheel slippage for a vehicle that is operating in the off-road ABS mode. When driving in a curve pattern and/or at high speeds, the individual wheel speeds are controlled with a lower slip threshold and/or shorter time period for the extended wheel slippage than when driving straight ahead and/or at a lower vehicle speed.

Abstract: A roll stability control system for a pneumatically operated vehicle brake system is implemented using simpler ABS hardware rather than more complex EBS hardware. For each brake chamber or channel, two 3/2 solenoid controlled valves are used. An ECU is operative to control the solenoids. The ECU is preferably operative to provide a selected delivery pressure to the brake chamber without measurement of delivery pressure to the brake chamber. Supply air is provided at a known pressure to a first solenoid controlled valve that is associated with the brake chamber; the amount of time of energization and de-energization of the first valve that is needed to provide an output therefrom of a given pressure, is calculated; and the first valve is energized and de-energized for the calculated times, thereby to cause a low-pressure test pulse to be provided to the brake chamber.

Abstract: In one embodiment, a vehicle braking system, for delivering pressurized air to a brake chamber to achieve a desired braking response, includes an air-pressure controlled relay valve for delivering the pressurized air to the brake chamber. A solenoid receives a variable control input pressure and delivers the control input pressure to the relay valve as a function of a state of the solenoid. An ECU controls the solenoid according to a control model for delivering the pressurized air to the brake chamber and achieving the desired braking response.

Abstract: A device for current or voltage supply in a vehicle trailer or vehicle support which is connected with a pulling vehicle through at least one braking light conductor and an indicating conductor and has at least one electrical consumer, the device has an indicator formed so that a current flows through the indicator permanently and its intensity is selected so that in an error-free operation the indicator does not respond, while a voltage supply to an electrical consumer of the vehicle trailer is performed by the current.

Abstract: This invention achieves a complete dissipation of a residual pressure in a brake cylinder. The air brake system has a pressure control valve arranged between a brake valve and the brake cylinder. This pressure control valve has an outlet valve which controls the connection between an outlet chamber to which the brake cylinder is connected, and a venting space and has a control chamber. A connection between the control chamber and the venting space can be controlled by way of a control valve. There is furthermore a connecting conduit between the outlet chamber and the control chamber of the outlet valve. In the case of a braking operation, the control valve is switched briefly into its open position after the actuation of the brake valve ceases, allowing the residual pressure in the brake cylinder to be dissipated to the venting space via the connecting conduit. The method can be employed in commercial-vehicle air brake systems.

Abstract: The invention relates to an electronic brake system, especially for road vehicles. According to the invention, the entire electronic system is split into only two units, which communicate with one another and each of which can control at least two pressures independently of one another. The brake system may be operated pneumatically, or electronically/pneumatically.

Abstract: Metal complexes of disazo dyestuffs of the formula ##STR1## wherein one X=chlorine and the other X=NO.sub.2, orboth the radicals X=chlorine, andR=the radical of a diazo component of the benzene, naphthalene or diphenylamine series which, in the o-position relative to the azo group, is free from groups which form metal complexes,and their use for dyeing and printing of nitrogen containing materials, such as silk, wool or synthetic fibers of polyamides or polyurethanes. The resulting dyeings have excellent fastness properties.

Abstract: Iron complexes of azo dyestuffs of the formula ##STR1## wherein R.sub.1 and R.sub.2 have the meaning indicated in the description,and their use for dyeing or printing various fibre materials, for example wool, silk and synthetic materials such as Perlon, but especially leather. The dyeings obtained are distinguished by good fastness properties.

Abstract: The compound which corresponds to the formula ##STR1## is suitable for the preparation of azo dyestuffs.

Abstract: The subject matter of the present invention relates to tetrakisazo dyestuffs which in the acid form correspond to the formula ##STR1## wherein Z.sub.1, Z.sub.2 = an optionally substituted amino groupR = h or a non-ionogenic substituent, in particular halogen or alkyl,n = an integer of 1 to 3The rings A and B possible having further substituents, for example, alkoxy groups, such as methoxy groups, and the substituents R as well as Z.sub.1 and Z.sub.2 being the same or different. The new dyestuffs are suitable for dyeing and printing of natural fiber materials and distinguish themselves by good fastness properties.

Abstract: The subject matter of the present invention relates to tetrakisazo dyestuffs which in the acid form correspond to the formula ##STR1## wherein R = H or substituent,R.sub.1 = h or SO.sub.3 HZ.sub.1, z.sub.2 = an optionally substituted amino group,n = 1 or 2m = 1 or 2, n + m being .ltoreq.3 and wherein the rings A and B may have further substituents, for example, alkoxy groups such as methoxy groups.The new dyestuffs are suitable for the dyeing and printing of natural fibre materials, especially leather, and distinguish themselves by good fastness properties.