Cadillac Cancels ELR Noise (w/video)
Let’s make some noise for the Cadillac ELR’s host of noise cancelling technology.
Cadillac buyers obviously enjoy that serene and silent atmosphere while coddled within, but not this writer who would rather hear what’s going on (perhaps it’s the mechanic in me that’s always listening for the noise that indicates something is about to break).
Anyways, Cadillac wants us to know that it went to great lengths to make being inside the ELR as quiet a place as possible.
What’s odd to us is that, when operated electrically, even Cadillac admits that the ELR is near silent, so why spend all that time, effort and money on canceling noise when the generator springs to life. As we all know by now, the generator hardly ever comes on for the typical Volt owner. Is Cadillac expecting that the ELR will be operated differently?
Apparently, it’s all this high-tech noise canceling gear that is contributing to the fact the ELR is so pricey (base MSRP starts $75,995).
Press release below:
The all-new 2014 Cadillac ELR’s interior is so quiet when running on battery power that the electrified luxury coupe’s development team took care to keep it that way when the on-board gas-powered electric generator turns on for extended-range driving.
ELR uses active noise cancelling to uniquely preserve the peace and quiet. While most cars that use this type of sound-neutralizing technology aim simply to mute exhaust boom at low engine speeds, such as when idling, ELR uses it across all engine speeds.
“Acoustic refinement is an important attribute of every Cadillac interior, and ELR is no exception,” said Chris Thomason, ELR vehicle chief engineer. “Considering how quiet the car is during pure-electric driving we knew the generator sound had to be as pleasant as possible, and we were able to achieve it with active noise cancelling.”
The active noise cancelling system in the ELR electronically gathers input from the vehicle’s generator and powertrain, as well as from three ceiling-mounted microphones. The system calculates and produces the appropriate noise-cancelling signal, which is delivered through the Bose® audio system’s speakers and subwoofer.
ELR’s engine functions primarily as a range-extending, gas-powered generator for its advanced electric drive propulsion system. Active noise cancelling keeps the ELR’s interior quiet during extended-range operation, including long-distance drives and steep ascents.
Active noise cancellation also helped eliminate the need for additional sound-deadening materials, reducing mass, which saves energy and helps deliver spirited performance. ELR uses a variety of sound-buffering and -absorbing materials to minimize wind, road and engine noise, including:
- Acoustically laminated windshield and thicker front-door glass
- Liquid-applied sound deadener applied to the floor pan, trunk and roof
- Triple-sealed doors with acoustic perimeter water deflectors
- Mass-efficient sound-absorbing dash mat and carpet system
- Acoustic foam baffles inside body cavities and in between inner and outer quarter panels
- An isolated front suspension cradle with hydraulic powertrain mounts to isolate road and engine vibration
ELR is available nationwide in the U.S. beginning in January 2014.