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The petrol engines of the Volkswagen Touareg all feature a priming function of the fuel pump so that enough pressure in the fuel lines can be built up.
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Switching off is inline with the guidelines for the Volkswagen Phaeton and is described in Self-Study Programme 272. This ensures that there is always sufficient energy to start the engine.
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If the onboard power supply is placed too much under load, the idling speed is also increased. heated rear windscreen, so that heavy discharging of the battery is avoided. It is connected to the E-box in the same way as the entry and start authorisation control unit.įitting location of onboard power supply control unit and entry and start authorisation control unitįurthermore, the onboard power supply control unit deactivates convenience system consumers and long-term HT consumers e.g. The onboard power supply control unit can be found in the vehicle interior on the driver’s side under the dash panel in the footwell. Voltage supply at starter and onboard power supply battery.Indicator lamp for hazard warning lightsįurthermore, the following switches and signals are processed and sent via the CAN bus to other control units.The onboard power supply control unit in the Touareg is responsible for the following functions: In the onboard power supply control unit, these functions are now localised. Until now control units and relays functioned at different locations in the vehicle. Here is his first one: Look Closer at Automotive Power Supplies.Functions of J519 onboard power supply control unit
#Onboard power suypply unit audi a6 2006 series#
The following is an example of a central body control module system diagram.Ī central body control module system diagram (Image courtesy of Infineon)įor a closer look at automotive power supplies, please see Vikram Patel’s series of instructional automotive power blogs on Planet Analog. This will enhance communication with lower power consumption and a selection of top security features. They have a range of highly integrated products that combine various functions in one device such as multi-channel switches in the SPOC and SPIDER families, and System Basis Chips (SBC) for more functions in less space.ĪURIX multicore microcontrollers enable the designer to integrate two applications in one device: BCM and gateway. Infineon has developed an excellent, scalable portfolio of new protected high side switches with their PROFET+2 high-side switches developed for 12V lighting and capacitive loads systems and High Current PROFET that will ensure the system’s reliability with short-circuit robustness.
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In order to accommodate the increasing number of functions on a shrinking central BCM, designers needs to implement a higher level of integration with a scalable and flexible architecture to fulfill a broad spectrum of requirements. The BCM does not control any engine-related functions. Control of various loads comes directly from remote ECU via CAN/LIN communication or directly from the central body module. The central BCM also operates as a gateway for bus and network interfaces to interact with remote electronic control units (ECU) for other systems. The automotive central body control module (BCM) is a processor-based power distribution center that supervises and controls functions related to the car body such as lights, windows, security, door locks and access control, and various comfort controls.