Ford presents PLC vehicle in Convergence show
Established in 1994, the company business is in the fast growing market communication (PLC) over noisy lines (i.e. battery line), with applications in the fields of Automotive, Aviation, Consumer Electronics, Security, Space, Toys, to name but a few. The DC-BUS Alliance was established by leading car makers to standardize the DC-BUS for vehicle multiplex networks. The company is active in European 6FP and 7FP programs and is a member of international standardization committees.
The DC-BUS technology enables network communication of Data, Voice, Music and Video signals by digital means over Direct Current (DC) battery power-line like those used in every vehicle. Yamar succeeded to deploy advanced digital communication techniques tailored to overcome hostile and noisy environment such as on vehicle battery lines in a small size silicon device. Customers integrate the devices into modules utilizing their own application (e.g. within body and power train modules for in-vehicle multiplex communication networks). Same power-line can be used for multiple independent networks by using different carrier frequencies. Prototypes are successfully operational in vehicles.
Yamar develops a family of DC-BUS based products for range of Automotive applications compatible with protocols such as CAN-bus, LIN sub-bus, J1850 bus.
Yamar has solutions for each of the multiplexed data communication bus categories:
The newly developed DC-BUS is an innovative and unique solution for asynchronous communication at data rates of up to 60Kbps for sub-bus low cost control applications,increasing the original LIN-bus data transfer rate, saving the cost of the control wire and LIN or RS232 transceivers and operates even over 42V noisy line. The QDC family of devices for multiplex communication at 10Kbps is a flexible solution for command and control applications such as Sensors and Actuators commonly used in vehicles (e.g. Climate control, Door module, Immobilizer, Obstacle detector). Interface to Synchronous, J1850 bus and CAN-bus Protocols.
DCB500 device is designed for extensive data (i.e. Voice) communication @ 500Kbps. While the DACN250 device interfaces with CAN-bus controllers. Evaluation boards are now under tests by leading car makers.
DCB101 for Video and Music communication - Yamar introduced a prototype for CD quality music @1.7Mbps on a DC power-line. Application example: link between CD Changer in the trunk and a Head unit on the dashboard.
Saving the Cost and Weight of Ordinary Wiring - The wiring harness is costly and the second heaviest component in the car after the engine. The DC-BUS does away part of the multiple and bulky wiring harness required between the various vehicle electronic systems. The technology replaces the cost and weight of copper wires and connectors with small silicon.
Flexible Modifications - Vehicles wiring harness is difficult to modify for new installations. The DC-BUS based components need only a single battery line, therefore are flexible for installation in every part of the vehicle.
Simplicity of Installation - Installation of DC-BUS based modules need only single connection to a battery line, which provide both power and communication.
Flexible Car Electronics Architecture - Enabling the flexible location of the electronic system modules and operation over 12V as well as 42V power networks.
Communication Speed - The DC-BUS provide additional data bandwidth on top of the available data buses of vehicle with protocol modification in the used, such as J1850, CAN-bus, LIN sub-bus, it allows voice communication too.