2010 Honda Accord Crosstour: Safety
11/3/2009 12:07:00 PM
2010 Honda Accord Crosstour Advanced Compatibility Engineering (ACE) body structure
The Accord Crosstour integrates a wide range of sophisticated safety technology that includes the Advanced Compatibility Engineering (ACE) body structure and dual-stage, multiple-threshold driver's and front passenger's airbags (SRS); driver's and front passenger's side airbags with passenger-side Occupant Position Detection System (OPDS); and side curtain airbags with a rollover sensor. The ACE body structure is an exclusive body design that enhances occupant protection and crash compatibility in frontal crashes.
Advanced Safety Technology
Inside, every Accord Crosstour incorporates side-curtain airbags and a driver's front side airbag and a passenger front side airbag with Occupant Position Detection System (OPDS), along with active front head restraints that are designed to help reduce the severity of neck injury in the event of a rear collision. Additional standard safety features include dual-stage, multiple-threshold front airbags, an Anti-lock Brake System (ABS) with brake assist, front seatbelts with automatic tensioners and load limiters, and a pedestrian injury mitigation design in the front of the vehicle. Daytime running lights are also standard equipment.
The 2010 Accord Crosstour safety features include:
Standard active safety systems
- 4-wheel disc Anti-lock Brake System (ABS), Electronic Brake Distribution (EBD) and brake assist
- Vehicle Stability Assist (VSA ®) with traction control (Electronic Stability Control)
- Tire Pressure Monitoring System (TPMS)
Standard passive safety systems
- ACE body structure
- 3-point seatbelts at all positions
- Front seatbelt load limiters and automatic tensioners
- Dual-stage, multiple-threshold front airbags
- Front-seat side airbags
- Side curtain airbags with rollover sensor
- Active front seat head restraints
- Lower Anchors and Tethers for CHildren (LATCH) system in the rear seat
Advanced Compatibility Engineering (ACE) Body Structure
At the heart of the Accord Crosstour is an exceptionally strong foundation based on the latest version of Honda's Advanced Compatibility Engineering (ACE) body structure technology that enhances occupant protection and crash compatibility in frontal collisions. The ACE design utilizes a network of connected structural elements to distribute crash energy more evenly throughout the front of the vehicle. This enhanced frontal crash energy management helps to reduce the forces transferred to the passenger compartment and can help to more evenly disperse the forces transferred to other vehicles in a crash. Additionally, ACE helps minimize the potential for under-ride or over-ride situations that can happen during head-on or offset frontal impacts with a significantly larger or smaller vehicle.
Unlike most conventional designs that direct frontal crash energy only to the lower load-bearing structures in the front end, the ACE system actively channels frontal crash energy to both upper and lower structural elements, including the floor frame rails, side sills and A-pillars. By creating specifically engineered "pathways" that help distribute these frontal impact forces through a greater percentage of the vehicle's total structure, the ACE system can more effectively route them around and away from the passenger compartment to help limit cabin deformation and further improve occupant protection. Integral to the ACE concept is its unique front polygonal main design structure.
Pedestrian Injury Mitigation Design
Structures in the front of the Accord Crosstour are designed to help absorb energy in the event of a collision with a pedestrian. Research by Honda shows that the following features can dramatically improve a pedestrian's chance of survival if struck by a moving vehicle.
Key pedestrian safety features:
- Hood is designed to deform if contact is made with either an adult or a child pedestrian
- Sufficient clearance exists between the hood and hard engine parts
- Windshield base has a unique section structure for efficient impact energy absorption
- Energy-absorbing fender mounts and supports
- Deformable windshield wiper pivots
- Deformable hood hinge
Vehicle Stability Assist (VSA ®) with Traction Control and Brake Assist
Vehicle Stability Assist (VSA) is an Electronic Stability Control system that works in conjunction with the Accord's drive-by-wire throttle and its 4-channel ABS systems to enhance controllability while the vehicle is accelerating, braking, cornering or when the driver makes a sudden maneuver. VSA functions by applying brake force to one or more wheels independently while also managing the throttle, ignition and fuel systems to help the vehicle maintain the driver's intended path of travel.
The VSA system constantly analyzes data from seven sensors that monitor wheel and vehicle speed, steering input, lateral G forces and yaw rate. It compares the driver's control inputs with the vehicle's actual response. Whenever the actual response falls outside of a predetermined acceptable range, VSA intervenes with a corrective action.
For instance, if VSA detects an oversteer condition, the system may apply braking force to the outside front and rear wheels to counteract the unintended yawing effect. In the event of understeer, VSA may apply braking to the inside rear wheel while reducing engine power to help return the car to its intended course. VSA also provides a limited-slip differential effect for the front wheels by applying braking force to a slipping wheel, thereby redirecting driving force to the wheel with more traction.
Another significant VSA function is recognizing emergency braking situations and almost instantly applying added braking force. This brake assist feature is controlled by a special logic in the system that determines when the pedal stroke and speed exceed a typical range as they would in a panic stop. At that point, the VSA modulator pump increases braking pressure while the pedal is still being pressed to ensure maximum stopping force, an action that helps shorten braking distance as much as possible. VSA is calibrated to function in a near-transparent manner, and in many cases a driver will not even be aware of its operation. However, anytime the system is enhancing vehicle stability, an indicator light flashes in the instrument cluster. While the driver can deactivate the VSA stability enhancement and traction-control functions via a switch on the instrument panel, ABS remains fully operational at all times.
Advanced 4-Channel ABS with Electronic Brake Distribution
The Accord Crosstour is fitted with 4-wheel disc brakes that have vented front rotors and solid rear rotors. (Please see Chassis section for more information.) The ABS system also incorporates Electronic Brake Distribution (EBD) circuitry that automatically proportions force based on the vehicle's weight distribution.
Dual-Stage, Multiple-Threshold Front Airbags
Both the driver and front passenger are protected by advanced front airbags (SRS) that incorporate dual-stage and multiple-threshold activation technology. One or both of these airbags will be deployed only in the event of a sufficient frontal impact. If deployed, these airbags are capable of being inflated at different rates depending on crash severity, seatbelt usage and other factors.
Like other Honda vehicles, the driver's front airbag is located in the steering wheel while the passenger airbag is located on the top of the dash. When deployed, the passenger airbag inflates upward and then rearward to maximize its protective potential while reducing the likelihood of injuries being caused by the activation process itself.
Side Curtain Airbags
Standard side curtain airbags provide enhanced head protection for occupants of the front and outboard rear seats in all 2010 Accord Crosstour models. The Accord Crosstour side curtain airbag design first inflates a main chamber, then a connected sub chamber. This design allows the main chamber to remain inflated for a slightly longer time following a crash. Inputs from side impact sensors, rollover sensor and a central sensor are used to determine when to deploy the side curtain airbags.
Driver and Front Passenger Side Airbags with Front Passenger Occupant Position Detection System (OPDS)
Driver's and front passenger's side airbags mounted in the outboard area of each front seatback are designed to provide pelvis and thorax protection in the event of a severe side impact. In addition, the front passenger's seat is equipped with Occupant Position Detection System (OPDS), an innovative system designed to deactivate the side airbag if a small child (or small-stature adult) leans into the side airbag deployment path. When the passenger returns to an upright seating position, the side airbag reactivates so it can deploy to help protect the occupant in a side impact. This unique system utilizes weight sensors and sensors in the passenger seatback to determine the height and position of the occupant, and determine if it is safe to deploy the side airbag.
Front Seatbelts with Automatic Tensioners and Load Limiters
The front seatbelts are equipped with automatic tensioners and load limiters to help minimize injury potential in a frontal collision. When an impact occurs, the automatic tensioner tightens the seatbelt (shoulder and lap) to help hold the seat occupant firmly in position. Each front seatbelt retractor incorporates a load limiter that works in conjunction with the automatic tensioner. In response to the occupant's input, the load limiter functions by permitting a small amount of controlled seatbelt slack shortly after the automatic tensioner is activated to limit the peak restraining forces, reducing the potential of serious injury. The front seatbelts in all Accords also feature adjustable shoulder anchors. Three-point seatbelts are standard in all three rear seating positions.
Active Front Seat Head Restraints
Both of the Accord's front seats are fitted with an innovative active head restraint designed to help reduce the likelihood of neck injuries in the event of a rear impact. The head restraint is mechanically connected to a lumbar plate located inside of the seatback via special links. If a rear impact takes place, the passenger's body is pushed against the seatback. That action causes the head restraint to move forward in a carefully prescribed arc. The effect of this motion helps equalize the impact forces being transmitted to the head, neck and spine throughout the collision as the occupant's head moves backward. Effectively managing and evenly disbursing these energy spikes is a critical factor in helping minimize the potential for injuries.
Lower Anchors and Tethers for CHildren (LATCH)
The outboard rear seating positions in the Accord Crosstour are fitted with Lower Anchors and Tethers for CHildren (LATCH) that provide a simple and secure method of installing up to two compatible child safety seats. Alternately, the center position incorporates an upper tether that makes it possible to fit a single child safety seat. When a child seat is in the center position, additional child seats may not be used in the outboard positions.
Tire Pressure Monitoring System (TPMS)
The Accord Crosstour is fitted with a new direct Tire Pressure Monitoring System (TPMS) that alerts a driver whenever the air pressure in one or more of the vehicle's tires decreases significantly below the recommended level. Using four sensors (one in each tire) TPMS monitors and transmits information on tire air pressure to the ECU. When the pressure in one or more tires drops to a potentially critical level, it causes a low tire pressure indicator (located in the instrument cluster) to illuminate.