Hydraulic Body Motion Control System
Encyclopedia
The Hydraulic Body Motion Control System (HBMC) technology was employed initially in the Nissan Patrol
, and subsequently the Infiniti QX
. The system was invented and developed by Nissan Motors
and was tested on the Nissan Patrol
in the Middle East. The system helps reduce body lean while turning for a more comfortable ride. Utilizing hydraulic cylinders located at the shock absorbers (connected via cross piping and two accumulators), it adjusts roll stiffness by allowing transfer of fluid between the left and right sides of the vehicle through passive weight transfer during normal driving. It also helps reduce bump shock by setting bounce and roll damping forces separately. In off-road conditions, HBMC activates when it senses that a wheel has dropped.
The hydraulic Body Motion Control System was first available on the new model year 2010 Nissan Patrol, a sport utility vehicle that is sold worldwide, and shares a platform with the Infiniti QX. The system was also introduced in similar form on the 2011 Infiniti QX.
:
Nissan Patrol
The Nissan Patrol is a four-wheel drive vehicle manufactured by Nissan in Japan since 1951. In Japan since 1980, it has been known as the Nissan Safari. The Patrol is available in Australasia, Central and South America, South Africa, parts of Southeast Asia and Western Europe as well as Iran and...
, and subsequently the Infiniti QX
Infiniti QX
The Infiniti QX is a luxury SUV built by Nissan and originally sold in North America. The first generation received its naming inspiration from the recognized four wheel drive terminology "4×4" with Infiniti adding a "Q" at the beginning to suggest it was a luxurious "4×4", borrowed from the Q45...
. The system was invented and developed by Nissan Motors
Nissan Motors
, usually shortened to Nissan , is a multinational automaker headquartered in Japan. It was a core member of the Nissan Group, but has become more independent after its restructuring under Carlos Ghosn ....
and was tested on the Nissan Patrol
Nissan Patrol
The Nissan Patrol is a four-wheel drive vehicle manufactured by Nissan in Japan since 1951. In Japan since 1980, it has been known as the Nissan Safari. The Patrol is available in Australasia, Central and South America, South Africa, parts of Southeast Asia and Western Europe as well as Iran and...
in the Middle East. The system helps reduce body lean while turning for a more comfortable ride. Utilizing hydraulic cylinders located at the shock absorbers (connected via cross piping and two accumulators), it adjusts roll stiffness by allowing transfer of fluid between the left and right sides of the vehicle through passive weight transfer during normal driving. It also helps reduce bump shock by setting bounce and roll damping forces separately. In off-road conditions, HBMC activates when it senses that a wheel has dropped.
The hydraulic Body Motion Control System was first available on the new model year 2010 Nissan Patrol, a sport utility vehicle that is sold worldwide, and shares a platform with the Infiniti QX. The system was also introduced in similar form on the 2011 Infiniti QX.
System Overview
Two hydraulic systems connected by cross-link hydraulic pipes to the 4-wheel independent suspension's hydraulic cylinders absorb road bumps and help reduce body lean when cornering. This helps minimize fluctuation of view of those on board and provides a more comfortable ride. Unlike other similar systems, this does not need a power source, so there is no trade-off with fuel economy.Cornering
Fluid from the two outside wheel hydraulic cylinders flows to the accumulator to raise the suspension's roll stiffness. This counteracts centrifugal force, reducing the degree of sinking on the vehicle's outer side and helps to minimize passenger fluctuation of view.Rough Road and Off-Road Driving
The suspension for each wheel rises or drops according to road conditions, smoothly absorbing the vibrations caused by off-road bumps and holes.Vehicles
Models that have adopted the Hydraulic Body Motion Control Suspension System to date, listed by model yearModel year
The model year of a product is a number used worldwide, but with a high level of prominence in North America, to describe approximately when a product was produced, and indicates the coinciding base specification of that product....
:
- 2010 Nissan PatrolNissan PatrolThe Nissan Patrol is a four-wheel drive vehicle manufactured by Nissan in Japan since 1951. In Japan since 1980, it has been known as the Nissan Safari. The Patrol is available in Australasia, Central and South America, South Africa, parts of Southeast Asia and Western Europe as well as Iran and...
- 2011 Infiniti QXInfiniti QXThe Infiniti QX is a luxury SUV built by Nissan and originally sold in North America. The first generation received its naming inspiration from the recognized four wheel drive terminology "4×4" with Infiniti adding a "Q" at the beginning to suggest it was a luxurious "4×4", borrowed from the Q45...