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Automotive

Michael Dunn
Editor, Design Ideas, Automotive & Medical Design Centers
Cars have become computers on wheels, with more and more automotive design being driven by electronics. Stay up to speed on automotive design with this site. Topics discussed include hybrid and electric vehicles (EVs), infotainment, safety systems, solid-state lighting, powertrain, x-by wire, Human Machine Interface (HMI), telematics/in-vehicle navigation, and more.

Cranking simulator made easy

Matthias Ulmann outlines how to simulate and manage the drop of battery voltage during cranking of an engine. Read More...

Big batteries, big issues

Forget those small rechargeable cells for now and think about the implications of the much, much, larger ones that are becoming more common. Read More...

Automotive battery sensor packs MCU and CAN controller

Aimed at both conventional and emerging battery chemistries for automotive and industrial applications, the MM9Z1J638 battery sensor from Freescale Semiconductor combines three measurement channels, a 16/32-bit MCU, LIN 2.2 protocol and physical interface, and CAN protocol controller in a 48-pin QFN package. Read More...

Powering image sensors in automotive camera applications

Learn about the design of efficient, low noise power supply subsystems by following the reengineering process for an existing camera module. Read More...

Autonomous cars by 2019?

The rush to automotive autonomy continues. Will governments oversee, or will it be a free-for-all? Read More...

In the pits with FIRST Robotics

EDN visits a FIRST Robotics competition for a look at what future engineers design, build, and operate. Read More...

Automotive newsbytes: April 2014

A look at recent news and happenings in automotive electronics and design, including dysfunctional keyless ignition, brain sensing, autonomous infrastructure, and a book about the automotive X-Prize. Read More...

Toyota Underestimated 'Deadly' Risks, EE Live! keynoter says

A software expert whose testimony led to a guilty verdict against Toyota Motors in one of a series of runaway acceleration accidents told a packed EE Live! audience that the best assurance for preventing similar "deadly" outbreaks must be stronger, smarter oversight by federal regulators. Read More...

Driver-aware ADAS – The next step towards autonomous vehicles

This article discusses the various methods that can be employed to ascertain whether the driver is attentive or distracted in order to ensure appropriate ADAS responsiveness. Read More...

The changing sound of the drive

Sound insulation in the cabin has been increasing, and so has the isolation from the sounds of driving. A trend to address the issue of what the car engine is doing is to play engine sound through the audio system of the car to the cabin. Read More...

IPEmotion software gets CAN traffic analyzer, improved visualization

Automotive measurement technology provider Ipetronik has introduced version 2014 R1 of its popular IPEmotion data acquisition software. Read More...

ADAS reference designs from TI

Check out TI's ADAS reference designs aimed at vision and power. Read More...

Kit demos controllerless pedelec/e-bike battery management

Austrian manufacturer ams offers a reference design for accurate cell monitoring and balancing of lithium pedelec and e-bike batteries without the need for a microcontroller in the battery-management system. Read More...

V2X ECU reference design

PANGAEA4 V2X development platform is a series-production-ready ECU reference design for on-board and infrastructure use. Read More...

Instrument clusters gated by power control

Unlike traditional industrial electronics, automotive instrument cluster PMICs have to contend with radio bands, radar systems, display and touch controllers and other RF sources near the circuit board. Read More...

>> SEE ALL

Design Notes: 42V 2.5A Synchronous Step-Down Regulator with 2.5μA Quiescent Current

This efficient solution allows for small inductors and high switching frequency. Read More...

Precision capacitance meter

There's an art to capacitance measurement. What do you think of this rendition? Read More...

Sense automobile high-side current with discrete components

Use this circuit to convert a current into a voltage for measurement. Read More...

Current monitor uses Hall sensor

Use a Hall-effect sensor to measure dc current in the range of 0 to 40A. Read More...

Simple circuit helps to protect a vehicle-reverse camera

Add a delay to prevent short power pulses as you shift through reverse. Read More...

Solar-powered sensor controls traffic

A traffic-sensor post measures vehicle location and speed at an intersection, providing an accurate, effective, inexpensive approach to monitoring traffic flow. Read More...

Power USB devices from a vehicle

Supply power to two USB devices from the cigarette lighter or other power source. Read More...

Automotive switching regulators get input-transient-voltage protection

A simple scheme protects switching regulators against 50V voltage transients in automotive applications. Read More...

Automotive link uses single wire

In the automotive industry, in which the goal is to produce cars with simpler, lighter wiring looms, any interface that uses just one wire instead of two offers a distinct advantage. The circuit in Figure 1 implements a bidirectional link using a single wire, with the car's chassis or ground conductor providing a negative return path. Read More...

>> SEE ALL

Automotive battery sensor packs MCU and CAN controller

Aimed at both conventional and emerging battery chemistries for automotive and industrial applications, the MM9Z1J638 battery sensor from Freescale Semiconductor combines three measurement channels, a 16/32-bit MCU, LIN 2.2 protocol and physical interface, and CAN protocol controller in a 48-pin QFN package. Read More...

IPEmotion software gets CAN traffic analyzer, improved visualization

Automotive measurement technology provider Ipetronik has introduced version 2014 R1 of its popular IPEmotion data acquisition software. Read More...

ARM Cortex A9 MCU development board runs Linux

Silica has launched a new ArchiTech development board that offers a low cost streamlined platform for Linux based designs. Read More...

Safety glass comes to automotive display screens

With display screens in cars growing bigger and bigger, the risk of injury through sharp splinters resulting from an accident is rising sharply. Read More...

Handheld device performs CAN bus diagnostics

The PCAN-Diag is a handheld device for the diagnostics of CAN busses on OSI layers 1 and 2. Read More...

Audio power amp sounds EV warning

Toshiba Electronics is offering a single-chip amplifier to support safety designs that add the sound of a conventional internal combustion engine to electric and hybrid electric vehicles. Read More...

Ada comes to ARM Linux

Ada support is now available on embedded ARM processors running Linux for safety critical code development. Read More...

Key management system secures car software updates

Security expert company Escrypt has developed a key management system that secures software updates for automotive control units. Read More...

It's an oscilloscope and...

Tektronix MDO3000 is an oscilloscope and as many as five other instruments. Now if it only had a power supply. Read More...

Get eight 12-bit channels over USB 3

Pico Technology's PicoScope 4824 provides eight 12-bit analog inputs and a waveform generator onto a PC-based package that runs over USB 3.0. Read More...

Step-down controller provides 7.5-V buck-boost bias voltage

Operating from a supply of 2.5 V to 60 V, Linear Technology’s LT3840 synchronous step-down DC/DC controller generates a 7.5-V bias voltage for MOSFET gate drive regardless of whether the input voltage is above, below, or equal to 7.5 V. Read More...

3D ADR chip shows 3D vehicle movement without GNSS signals

The UBX-M8030-Kx-DR chip integrates 3D ADR technology (3D Automotive Dead Reckoning). Read More...

Mission-critical RTOS available for Renesas MCUs

The Wittenstein High Integrity Systems real-time operating system for mission-critical systems is now available for Renesas RX631/RX63N microcontrollers. Read More...

Automotive-rated Micro SD cards offer 100x data retention

Swissbit AG's S-40 and S-40u Series SD and Micro SD memory cards are the first SD and Micro SD cards on the market to feature autonomous data refresh with no intervention required by the host or application. Read More...

Automotive TVS diodes boost power dissipation

With its 600-W peak pulse power dissipation rating, the TPSMB series of transient voltage suppression (TVS) diodes from Littelfuse provides secondary protection of sensitive automotive electronics from transients induced by load dump and other transient voltage events. Read More...

Programmable solenoid controller reduces emissions and improves efficiency for fuel injection engines

Governments worldwide are requiring automakers to improve fuel efficiency and meet new emissions standards over the next five to ten years. Read More...

Tiny real-time clock module meets AEC-Q200 requirements

Micro Crystal's real-time clock modules feature very small dimensions, an extended operating temperature range and AEC-Q200 compliance for automotive environments. Read More...

Bose announces automobile cabin active noise reduction

Using the car's sound system to reduce noise, not increase it. Read More...

Signal analyzer supports car-to-x communications standards

Rohde & Schwarz has expanded the functionality of its R&S FSV and R&S FSW signal and spectrum analysers to include support the IEEE 802.11p wireless standard for the car-to-x communication. Read More...

Probe microphone withstands 800°C

For testing, design verification, and research, this microphone goes where others would melt. Read More...

SDR chip supports multiple digital radio standards

NXP chip decodes three major digital terrestrial radio standards. Read More...

An oscilloscope just for power

The PX8000 Precision power scope from Yokogawa lets you focus on power measurements for motors, inverters, and power-distribution networks. Read More...

Camera-on-a-chip brings HDR to ADAS

Improve automotive imaging with this high-def high dynamic range chip. Read More...

CES: Induct claims 1st fully electric, self-driving shuttle in US

Although autonomous privately owned cars and trucks are not yet fully ready or approved for streets, highways and super-highways, Induct has developed an intelligent, electric and driverless shuttle, called Navia, in the U.S. Read More...

LTC 42V, 4A (IOUT), synchronous step-down silent switcher for the auto market needs

With the automotive needs in mind, Linear Technology Corporation developed the LT8614, a 4A, 42V input capable synchronous step-down switching regulator. Read More...

>> SEE ALL

Teardown: Heads-up thermal imaging camera

Wow, thermal imaging in the car. Read More...

Teardown: Airbag controller

Check out this airbag controller teardown, courtesy of Dave Jones from the EEVblog. Read More...

Teardown: OBD-II Bluetooth adapter

Peer inside an unbelievably low-cost OBD-II to Bluetooth "dongle." Read More...

Teardown: High-voltage Li-ion battery stack management - the drive for safe power

At the heart of the Chevrolet Volt, a sophisticated Li-ion battery stack management system ensures the safety and reliability of a multi-cell Li-ion battery stack capable of delivering power on demand to the Chevy Volt drive system. Read More...

Teardown reveals Chevy Volt's electronic secrets

Beyond battery chemistry and electric propulsion and control, the Chevy Volt enhanced-range electric vehicle builds in flexibility, ruggedness, and diagnostics—with attention to quality construction. Read More...

Bulldog Security RS82B remote-vehicle-starter system

Microprocessor-controlled relays let you start your car 100 yards away. Read More...

The Tesla Roadster: Sporty and electric

Prying Eyes: A modern electric sports car presents a unique design challenge. Read More...

The 24V, 300W, BLDC Kollmorgen motor integrated controller

A motor mixes mechanical and electrical beauty with questionable thermal design. Read More...

Under the hood of hybrid vehicles

Energy- and emission-efficient automobiles are increasingly relying on both combustion engines and electric motors for power. Read More...

Hybrids mark the end of the stinky city bus

Prying Eyes looks inside a hybrid gas-electric bus powered by 288 ultracapacitors. Read More...

>> SEE ALL

Nuvation CEO examines the Autonomous Vehicle concept

Mike Worry, Nuvation CEO, put together a brief slideshow regarding his view of why it should be illegal for humans to drive and his solution to that problem. Here is a summary of that presentation that I have put into an EDN slideshow Read More...

Cranking simulator made easy

Matthias Ulmann outlines how to simulate and manage the drop of battery voltage during cranking of an engine. Read More...

Powering image sensors in automotive camera applications

Learn about the design of efficient, low noise power supply subsystems by following the reengineering process for an existing camera module. Read More...

Design Verification Testing of GPS Receivers

Anyone can sell a GPS receiver product that would be unable to hear signals and be completely non-functional. It could work most of the time, just not all the time, and not in any predictable way. Design verification testing to the rescue. Read More...

Driver-aware ADAS – The next step towards autonomous vehicles

This article discusses the various methods that can be employed to ascertain whether the driver is attentive or distracted in order to ensure appropriate ADAS responsiveness. Read More...

MSOs probe analog and digital

Mixed-signal oscilloscopes combine analog and digital inputs that provide a view of how signals interact in embedded systems. Read More...

Redundancy for safety-compliant automotive & other devices

Learn the many kinds of HW & SW redundancy that can be applied to safety-critical systems and SoCs. Read More...

Analyzing remotely collected performance data in real-time reduces costs and improves reliability

Keeping tabs on vehicle condition remotely pays dividends to OEMs, but be sure you’re weighting the data correctly. Read More...

Assessing high-performance automotive radio tuners for infotainment systems

Read about the high level of intelligence and performance demanded of today’s automotive radio tuners. Read More...

Product how-to: Active noise control – a software-based approach for automobiles

With powerful processors and DSPs becoming commonplace in the automobile, active noise control becomes just one more software task. Read More...

Load dump protection: Old vs. new ISO standards

Learn how to use a diode TVS (transient voltage suppressor) for load-dump protection. Read More...

Product how-to: Selecting the right OS for IVI (in-vehicle infotainment)

Red Bend’s Yoram Berholtz talks about IVI OS selection and OTA updating. Read More...

Serial buses: Faster than cars

Homes aren't the only places that now have high-speed data networks. Cars have them, too. Read More...

>> SEE ALL

04.09.2014

Powering image sensors in automotive camera applications

Learn about the design of efficient, low noise power supply subsystems by following the reengineering process for an existing camera module.Read more...

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