| Patent application number | Description | Published |
|---|
| 20080295685 | Air Filter Cartridge and Method for Identifying Characteristics of an Air Filter Cartridge - An air filter cartridge is mounted in an air purification device of a commercial vehicle. The air filter cartridge includes an identification device, the information of which can be recorded by a recording device. The method detects the characteristics of an air filter cartridge for use with the air purification device. | 12-04-2008 |
| 20080309154 | Method For Controlling a Pneumatic Braking System - A method for controlling a pneumatic braking system of a utility vehicle that includes a service brake and an electric parking brake, an electronic control unit being provided for controlling the electric parking brake. The parking brake assists a brake intervention of the utility vehicle when there is a circuit failure of the service brake. | 12-18-2008 |
| 20090099746 | Method for Controlling an Electric Parking Brake of a Utility Vehicle - A method is provided for controlling an electric parking brake of a utility vehicle, having a device including an electronic control unit and a manual control unit that communicates with the electronic control unit, and via which driver requests depending on the type of actuation of the manual control unit can be transmitted to the electronic control unit. The parking brake is applied following an action carried out by the driver of the utility vehicle, which action does not relate to the actuation of the manual control unit. | 04-16-2009 |
| 20090127926 | Compressed Air Supply System for a Utility Vehicle - A compressed air supply system for a utility vehicle includes a compressor that can be driven by a drive by a pneumatic clutch, and a valve that can be actuated by an electrical signal for the selective supply of compressed air to a control input of the clutch. The electrical signal is provided by an electronic control system to which signals indicating an operating state of a compressed air preparation system and various vehicle states can be supplied. | 05-21-2009 |
| 20090133394 | Method for Controlling or Regulating the Air Pressure in a Compressed Air Supply Device - A method is provided for controlling and/or regulating the air pressure in a compressed air supply device for a utility vehicle. At least one pressure value in the compressed air supply device and/or in vehicle components connected to the compressed air supply device is recorded. A humidity value representing the humidity content in an air filter unit associated with the compressed air supply device is determined. A clutch connecting a drive to a compressor is opened. A discharge valve of the compressed air supply device is opened when the pressure value is above a predetermined minimum value and the humidity value exceeds a predetermined threshold value. The clutch is opened and the discharge valve remains closed when it is indicated that the clutch can be engaged, the pressure value reaches a predetermined cutting-off pressure, and the humidity value is below the predetermined threshold value. | 05-28-2009 |
| 20090133395 | Compressed Air Supply Device for a Utility Vehicle - A compressed air supply device is provided for a utility vehicle, having a compressor which can be driven by a drive via a pneumatically switchable clutch, and a valve which can be activated by an electrical signal in order to optionally feed compressed air to a switching inlet of the clutch. The compressed air, which is fed to the switching inlet via the valve, is extracted from a compressed air preprocessing system via a non-return valve. | 05-28-2009 |
| 20090193977 | Compressed Air Supply Device for a Utility Vehicle and Air Dryer Cartridge - A compressed air supply device is provided for a utility or commercial vehicle. The device includes a valve housing and an air dryer cartridge which has a housing. A drying agent box, which is filled with drying agent, is arranged in the housing of the air dryer cartridge. The drying agent can be compressed by an elastic device. | 08-06-2009 |
| 20090199522 | Compressed Air Supply Device - A compressed air supply device for a commercial vehicle is provided. The compressed air supply device includes a valve housing and an essentially axially symmetrical, exchangeable air-drying cartridge which is connected to the valve housing. The valve housing and the air-drying cartridge are connected via an essentially circular seal which lies in a plane perpendicular to the axis of the air-drying cartridge. The valve housing and the air-drying cartridge can be coupled to each other by being brought together in an axially parallel manner. The valve housing and the air-drying cartridge have features which permit a leak-proof connection between the valve housing and the air-drying cartridge at one or more angular positions of the air-drying cartridge relative to the valve housing. | 08-13-2009 |
| 20090199523 | Compressed Air Supply Device - A compressed air supply device for a commercial vehicle is provided. The compressed air supply device includes a valve housing and an air-drying cartridge connected releasably to the valve housing. The valve housing and the air-drying cartridge are connected to each other via a bayonet fastening arrangement. | 08-13-2009 |
| 20090206658 | Device and Method for Controlling an Electric Parking Brake of a Utility - A device for controlling an electric parking brake of a utility vehicle includes an electronic control unit and a manual control unit that communicates with the electronic control unit and via which driver requests depending on the type of actuation of the manual control unit can be transmitted to the electronic control unit. The electronic control unit is adapted to process signals of the manual control unit when the ignition is switched on. The manual control unit is adapted to output in at least one mode of operation a wake-up signal to the electronic control unit. The electronic control unit is adapted to process, once having received a wake-up signal, at least one additional signal of the manual control unit even if the ignition of the utility vehicle is switched off. | 08-20-2009 |
| 20090285696 | Compressed Air Supply System for a Utility Vehicle - A compressed air supply system for a utility vehicle includes a compressor that can be driven by a drive by a pneumatic clutch, and a valve having a magnetic coil for selectively supplying compressed air to a coupling inlet of the clutch. When the valve is opened or maintained open, a pick-up current flows through the magnetic coil during a first phase, and a holding current weaker than the pick-up current flows through the magnetic coil during a second phase, a driver signal generating the holding current being pulse-width-modulated in the second phase. | 11-19-2009 |
| 20100199844 | Compressed-Air Supply Device and Valve Housing - A compressed air-supply device for a utility vehicle includes a valve housing and an exchangeable air-drying cartridge. The air-drying cartridge has a filter device which cleans the air flowing from the valve housing into the air-drying cartridge. The filter device separates the pre-filter area facing the valve housing from the post-filter area that faces the air-drying cartridge and in which foreign particles captured by the filter device are collected. A non-return valve is provided parallel to the filter device, which prevents air flowing from the pre-filter area to the post-filter area but allows the air flow from the post-filter area to the pre-filter area. The non-return valve is arranged in the valve housing. | 08-12-2010 |
| 20100236653 | Compressed-Air Supply Device with Improved Regeneration Capacity - A compressed air supply device for a utility vehicle includes a valve housing and an air-drying cartridge, wherein compressed air can be supplied to the air-drying cartridge via the valve housing. The compressed air flows through the air-drying cartridge in a first direction of flow. An electrically controllable valve is provided in the valve housing, which ensures a return flow of compressed air counter to the first direction of flow through the air-drying cartridge for regeneration purposes. A valve that can be controlled pneumatically by the electrically controlled valve is provided in the valve housing, via which compressed air can be supplied to the air-drying cartridge for regeneration purposes. | 09-23-2010 |
| 20100244550 | Electrical Parking Brake System for a Utility Vehicle and Operating Method - An electrical parking brake system and method for a commercial vehicle includes a valve device, which connects a compressed-air supply with a spring brake cylinder without an intermediate connection of a hand brake valve. The valve device aerates the spring brake cylinder in a first switching state and deaerates the spring brake cylinder in a second switching state. The system further includes a pressure sensor, which measures a pressure on the compressed air supply side, and an electronic control unit for directly or indirectly controlling the valve device, acquiring a signal supplied by the pressure sensor, and acquiring an indicator signal for the presence of an individual in a cab of the vehicle. The valve device can only be transferred to its first switching state by the control unit if the pressure on the compressed air supply side exceeds a pressure threshold value and if the presence of an individual in a cab of the vehicle is indicated. | 09-30-2010 |
| 20100252343 | Process for Controlling a Start-Stop Operation of a Vehicle Having a Hybrid Drive, and a Corresponding Vehicle - A process for controlling a start-stop operation of a vehicle having a hybrid drive with an internal-combustion engine and an electric motor, a service brake with an ABS and an electric parking brake, includes: determining, monitoring and analyzing performance parameters of the vehicle, the internal-combustion engine, the electric motor, the service brake and the electric parking brake; automatically releasing the electric parking brake in the case of a starting prompt because of determined performance parameters; driving the vehicle by the electric motor for the start; starting the internal-combustion engine by the electric motor if the internal-combustion engine is switched off; driving the vehicle by the electric motor and the internal-combustion engine; activating a generator operation of the electric motor in the case of a braking prompt because of determined performance parameters; activating the service brake; and automatically locking the electric parking brake when the vehicle is stopped after a previously definable deceleration time, and a corresponding vehicle. | 10-07-2010 |
| 20100252378 | Control Device for a Brake System of a Utility Vehicle and Method for Controlling a Brake System - A control device and a method for a brake system of a utility vehicle are provided. The brake system includes service brake cylinders and spring brake cylinders for braking the utility vehicle, an electronic control device, sensors for detecting the state of motion of the utility vehicle, a foot brake valve for actuating the service brake, a manual control unit, a module encompassing electrically controllable valves for an anti-blocking system, and a module encompassing electrically controllable valves for an electrically controlled parking brake. The electronic control device influences both the anti-lock system and the electrically controlled parking brake. | 10-07-2010 |
| 20100269926 | Valve Device for a Compressed Air Supply Device and Compressed Air Supply System - A valve device for a compressed air supply system, includes a control chamber to which compressed air may be supplied, a control piston plate delimiting the control chamber, a control piston that is fixed to the side of the control piston plate facing away from the control chamber. The piston protrudes into a discharge valve chamber of a discharge valve, provided with at least one compressed air connection. A valve head delimits the discharge valve chamber, which can be pressurized with the force of a spring in the direction of a valve seat and which can be lifted from the valve seat by the control piston counter to the force of the spring in order to open the discharge valve. The control piston and a valve housing surrounding the control piston define at least two regeneration valve chambers of a regeneration valve having at least one compressed air connection. The at least two regeneration valve chambers are either separated from each other or connected together in accordance with the position of the control piston. | 10-28-2010 |
| 20100304929 | Braking System for a Utility Vehicle that can be Pneumatically Coupled to a Trailer, and Method for Operating such a Braking System - A braking system and method provided for a utility vehicle pneumatically coupled to a trailer. The system has an electronic control unit, a valve device that can be electrically connected by the at least one electronic control unit, the valve device building up pressure for the trailer braking system when connected, causing the trailer to brake, and a pressure sensor which detects the pressure for the trailer braking system and transmits a corresponding signal to the electronic control unit. The electronic control unit can influence the pressure generated for the trailer braking system by pulsed connection of the valve device, taking into account the pressure detected by the pressure sensor for the trailer braking system. The electronic control unit only allows the pulsed connection for braking the trailer when the service brake of the traction-vehicle is not activated, when conditions are such that the braking of the trailer could be useful in spite of a non-active service brake of the traction-vehicle, and when such an anti-jackknifing process is required by a signal generator. | 12-02-2010 |
| 20110139095 | Device for Generating Compressed Air for a Vehicle and Method for Operating a Device for Generating Compressed Air - A prime mover is provided for a vehicle having a plurality of cylinder chambers, a manifold, and engine brake valves by which the cylinder chambers can be connected to the manifold. A valve or nozzle is disposed on the manifold, by which the manifold can be connected to a feed line of a compressed air treatment system. | 06-16-2011 |
| 20110139263 | Compressed Air Suppy System and Method for Operating a Compressed Air Supply System - A compressed air supply system for a utility vehicle includes an air dryer unit provided with a filter unit, an electrically controllable valve unit and a pneumatically controllable discharge valve unit, a compressor with a coupling, which supplies compressed air to the air dryer unit via a delivery pipe, a multi-circuit safety valve unit which removes the compressed air from the air dryer unit, and an electrically controllable compressor coupling switch valve unit. An electronic control unit controls or regulates the functions of the air dryer unit and the compressor coupling switch valve unit. | 06-16-2011 |
