Embedded Systems Conference
Breaking News
Newest First | Oldest First | Threaded View
User Rank
re: Active vibration control technology solves noise issues in hybrid cars
kdboyce   11/29/2011 2:27:06 AM
Way back when my college buddy came up with some ideas he liked. One of them was a Engine Noise Generator that would make your VW bug sound like a dragster racer. The basic idea now makes more sense in light of the silent electrics. OK, OK, maybe not a dragster sound, but more along the line of a PUTT PUTT or electronically synthesized bubbly sound (ala Chitty Bang Bang) that clearly sets the electrics and hybrid apart from those nasty old combustion engines with high horsepower. Not only would it be different, but also maybe more acceptable than roaring engines.

User Rank
re: Active vibration control technology solves noise issues in hybrid cars
LarryM99   11/29/2011 12:05:37 AM
I have a Honda Insight, and even when the gas engine is running people walking in parking lots don't seem to be aware of me. I want at least to be able to generate a loud throat-clearing sound... larrym

User Rank
re: Active vibration control technology solves noise issues in hybrid cars
Dave.Dykstra   11/27/2011 11:00:51 PM
Very interesting. I suppose that cost and complexity have been the issues that have prevented something similar from having been done before. The implementation appears to be very ingenious and a sample of some very good engineering.

User Rank
re: Active vibration control technology solves noise issues in hybrid cars
DrQuine   11/27/2011 2:50:36 PM
A very nice solution to an emerging problem. Another acoustic problem associated with such vehicles is their silent operation when in pure electric mode when they may surprise (especially visually impaired) pedestrians. The hybrids will benefit from noise cancellation in reduced active cylinder modes and a little "introduced engine noise" as a warning they are approaching in the pure electric mode (a simple add-on).

IoT Network Shoot Out
July 16, 1pm EDT Thursday

Replay available now: A handful of emerging network technologies are competing to be the preferred wide-area connection for the Internet of Things. All claim lower costs and power use than cellular but none have wide deployment yet. Listen in as proponents of leading contenders make their case to be the metro or national IoT network of the future. Rick Merritt, EE Times Silicon Valley Bureau Chief, moderators this discussion. Join in and ask his guests questions.

Brought to you by

Flash Poll
Top Comments of the Week
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Special Video Section
Chwan-Jye Foo (C.J Foo), product marketing manager for ...
The LT®3752/LT3752-1 are current mode PWM controllers ...
LED lighting is an important feature in today’s and future ...
Active balancing of series connected battery stacks exists ...
After a four-year absence, Infineon returns to Mobile World ...
A laptop’s 65-watt adapter can be made 6 times smaller and ...
An industry network should have device and data security at ...
The LTC2975 is a four-channel PMBus Power System Manager ...
In this video, a new high speed CMOS output comparator ...
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...
Keysight shows you what signals lurk in real-time at 510MHz ...
TE Connectivity's clear-plastic, full-size model car shows ...
Why culture makes Linear Tech a winner.