Browse Topic: Keyless entry systems
The advancements of the automotive system in all the aspects from safety to user experience brings never ending list of electronics components into the system. One of the pure critical components in providing the vehicle safety is the digital key or wireless vehicle entry systems. This component is responsible for protecting all the other components of the vehicle and the vehicle itself from thieves and illegal usage of the vehicle. The compromisations of this critical component is equivalent to a compromisations of the entire vehicle along with some legal implications on the vehicle owner. There are numerous additional systems in automotive electronics which enhances the security of the critical, digital key/wireless vehicle entry system in protecting the vehicles from attackers. However, there is no component available in the market which does user/owner authentication considering its impact and criticality on both the vehicle and its owner. Either the lost key or the stolen key in
Any circuit system employing RF signals emit EM waves which might interfere with adjoining active circuits. A printed circuit board contains metallic strips known as PCB traces carrying signals for circuit functioning. PCB traces can turn into antennae (transmitting or receiving) depending upon the PCB design and the type of signal which they carry. RF systems used in automotive domain ranges from 300MHz to several GHz depending upon the application requirements. Due to space constrains, most the time it is required to design a mixed signal (analog and RF) circuits on single PCB, this constraint leads to crosstalk and other interferences. This paper explains the common pitfalls encountered in designing analog circuit along with RF circuit on the same PCB also this paper gives insight of RF circuits used in automotive remote keyless entry systems coupled with body control module ECU. Finally this paper sums up with methods implemented to minimize the interference between Analog and RF
Lear will rely more on its expertise in electrical distribution and electronics to help customers enhance vehicle safety and convenience features. Through the 1990s, Lear made a number of acquisitions, beefed up its technical facilities, and strengthened its engineering expertise to position itself as a complete interiors supplier-a major shift from the company's beginnings in seating. A focus on interiors meant putting an additional spotlight on instrument panels, cockpits, doors, overhead systems, flooring, and acoustics. The move beyond being a seating supplier developed as customers, particularly those in North America, started to outsource total interiors. But the business plan started to change when automakers resumed a stance of wanting to “control interiors on a micro-level, and that forced us to take a step back and really re-examine what our core business was,” said Douglas DelGrosso, President and Chief Operating Officer of Lear. The evaluation boiled down to Lear officials
Priorities for interior design are many and include increased safety, reduced noise, greater comfort, less complex ergonomics, and more systems support for the driver. After more than a century of progress, the cabin environment is still under development and is likely to be so for many years to come. Even vehicle seats, with a history going back way beyond the buckboard and stagecoach, remain under development with endless-and costly-variations on the same theme. Noise reduction is a focus for vehicle-development engineers. “Personally, I would not put money on active noise control systems, although we do continue to look at the technology,” said Richard Parry-Jones, Group Vice President, Global Product Development, and Chief Technical Officer, Ford Motor Co. “It seems to be a solution looking for a problem
This SAE Recommended Practice establishes a uniform practice for protecting vehicle modules from "unauthorized" intrusion through a vehicle diagnostic data communication link. The security system represents a recommendation for motor vehicle manufacturers and provides flexibility for them to tailor their system to their specific needs. The vehicle modules addressed are those that are capable of having solid-state memory contents altered external to the electronic module through a diagnostic data communication link. Improper memory content alteration could potentially damage the electronics or other vehicle modules; risk the vehicle compliance to government legislated requirements; or risk the vehicle manufacturer's security interests. This document is intended to meet the "tampering protection" provisions of California Air Resources Board OBD II regulations and does not imply that other security measures are not required nor possible
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