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Body and Chassis Design
The 2018 Accord's new body structure is lighter and more rigid, utilizing 29 percent ultra-high-strength steel, the most ever for a mass-produced Honda car. Overall, the new Accord employs 54.2 percent high strength steel (above 440 MPa).
Key body features include the latest generation of Honda's Advanced Compatibility Engineering™ (ACE™) body structure with crash stroke front frame, tailor-tempered rear frame members for improved crash-energy absorption, and the extensive use of structural adhesives for increased rigidity, cabin quietness and weight reduction. Total vehicle weight is down between approximately 110 to 176 pounds, depending on trim, while body torsional and bending rigidity are improved 32 and 24 percent, respectively, aiding ride quality, cabin quietness, and dynamic performance.
Mated to the new body is a more sophisticated new chassis design. The 2018 Accord's chassis is 6-percent lighter than before (not including wheels and tires) and features a new Macpherson strut front suspension with L-shaped aluminum lower arms mounted to an aluminum front subframe. The new setup better isolates and manages varying road inputs, improving handling precision, ride quality and cabin quietness along with outstanding high-speed stability and control. The new, more space-efficient rear suspension is a multi-link design mounted to a more rigid, floating rear subframe. Fluid-filled compliance bushings at all four corners further improve ride comfort and absorption of road irregularities.
Touring trims of Accord also feature, for the first time, an Adaptive Damper System with the ability to adjust shock absorber damping force every 1/500 of a second (0.002 second), using a proprietary Honda control algorithm, providing for a more compliant and controlled ride in all driving situations. The adaptive dampers are tied to a Two-Mode Driving System with Normal and Sport modes that allows the driver to dial-up/down the vehicle's sporty reflexes depending on the driving environment. The system engages with multiple chassis and drivetrain components, including the new dual-pinion variable-ratio electric power steering (EPS), automatic transmission, drive-by-wire throttle, adaptive dampers and Active Sound Control system, to provide the driver with an expanded range of driving characteristics. An ECON mode is also available that helps improve fuel efficiency by modifying throttle mapping and HVAC operation.
The new Accord has a 10-mm lower center of gravity. The adoption of lighter-weight turbocharged engines and other body design changes reduce the vehicle's moment of inertia, resulting in crisper turn-in and steering response. All models now have near optimal FWD weight distribution of approximately 60/40 percent front/rear. Accords with the new 2.0-liter VTEC turbo and 10AT check in at approximately 61/39 percent front/rear, a significant improvement versus the current V6 Accord with 6AT.
Along with the first application of structural adhesives to Accord, cabin quietness is further enhanced by a comprehensive sound-insulating package that includes full underbody covers (which also aid aerodynamics), front and rear fender and engine compartment insulators, alloy wheels with Honda-proprietary resonator technology, sound-absorbing carpet, acoustic laminated windshield glass – plus front door acoustic glass on EX and above – and a new, 3-microphone Active Noise Control system. The result is low noise levels with a well-balanced sound quality and a pleasingly sporty engine note.
Advanced Safety and Driver-Assistive Technology
For 2018, all Accords feature the full suite of Honda Sensing® safety and driver-assistive technologies as standard equipment. Honda Sensing includes Collision Mitigation Braking System™ (CMBS™), Lane Departure Warning, Road Departure Mitigation, Adaptive Cruise Control with Low-Speed Follow and, for the first time, Traffic Sign Recognition (see Safety section for more details). Additional available driver-assistive technologies include Blind Spot Information, front and rear parking sensors, Rear Cross Traffic Monitor and Driver Awareness Monitor; and all models feature a Multi-Angle Rearview Camera with dynamic guidelines.
Standard advanced active and passive safety systems include Vehicle Stability Assist with Traction Control, Anti-lock brakes with Electronic Brake Booster, Tire Pressure Monitoring System (TPMS), advanced front airbags, driver and front-passenger side airbags and new driver and front-passenger knee airbags. The Accord targets top U.S. government (NCAP) and IIHS collision safety ratings.
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