Mitsubishi RISE
Encyclopedia
Reinforced Impact Safety Evolution (RISE) or Realized Impact Safety Evolution is the brand name of Mitsubishi's
Mitsubishi Motors
is a multinational automaker headquartered in Minato, Tokyo. In 2009 it was the fifth-largest Japan-based automaker and the 17th-largest in the world measured by production...

 patented
Patent
A patent is a form of intellectual property. It consists of a set of exclusive rights granted by a sovereign state to an inventor or their assignee for a limited period of time in exchange for the public disclosure of an invention....

 safety body construction system. It was first introduced in the 1996 Mitsubishi Galant
Mitsubishi Galant
The first generation of the car, initially known as the Colt Galant, was released in December 1969. The design was dubbed "Dynawedge" by Mitsubishi, referring to the influence of aerodynamics on the silhouette. Three models were available, powered by the new 'Saturn' engine in 1.3 or 1.5 L ...

. Initially designed to improve passive safety
Automobile safety
Automobile safety is the study and practice of vehicle design, construction, and equipment to minimize the occurrence and consequences of automobile accidents. Automobile safety is the study and practice of vehicle design, construction, and equipment to minimize the occurrence and consequences of...

, the system has subsequently been developed to electronically integrate every aspect of car's active and passive safety features.

RISE is a monocoque
Monocoque
Monocoque is a construction technique that supports structural load by using an object's external skin, as opposed to using an internal frame or truss that is then covered with a non-load-bearing skin or coachwork...

 body system that combines an energy
Impact force
In mechanics, an impact is a high force or shock applied over a short time period when two or more bodies collide. Such a force or acceleration usually has a greater effect than a lower force applied over a proportionally longer time period of time...

-absorbing front and rear section with a strong, rigid occupant cell to provide protection in the event of an accident. It features high tensile
Tensile strength
Ultimate tensile strength , often shortened to tensile strength or ultimate strength, is the maximum stress that a material can withstand while being stretched or pulled before necking, which is when the specimen's cross-section starts to significantly contract...

 steel
Steel
Steel is an alloy that consists mostly of iron and has a carbon content between 0.2% and 2.1% by weight, depending on the grade. Carbon is the most common alloying material for iron, but various other alloying elements are used, such as manganese, chromium, vanadium, and tungsten...

 reinforcing bars in doors and energy-absorbing material in the side pillars and roof rails. The body structure is based around a one-piece shell with high levels of bending
Bending
In engineering mechanics, bending characterizes the behavior of a slender structural element subjected to an external load applied perpendicularly to a longitudinal axis of the element. The structural element is assumed to be such that at least one of its dimensions is a small fraction, typically...

 and torsional rigidity, which provides a steel cage for the safety of both the driver and passengers.

Colt

The 2003 Mitsubishi Colt
Mitsubishi Colt
The Mitsubishi Colt is a vehicle built by Mitsubishi Motors since 1962. It was first introduced as a series of kei cars and subcompact cars in the 1960s, and then as the export version of the Mitsubishi Mirage hatchback in the 1980s and 1990s...

 is built upon Mitsubishi’s Z
Mitsubishi Z platform
The Mitsubishi Z platform is a small-car platform jointly developed by DaimlerChrysler and Mitsubishi Motors since 2001 and used in the Mitsubishi Colt first introduced in 2003...

 platform
Automobile platform
An automobile platform is a shared set of common design, engineering, and production efforts, as well as major components over a number of outwardly distinct models and even types of automobiles, often from different, but related marques...

. It features RISE safety cell with two straight rails combined with an octagonal section frame. The doors also have special steel bars running across their length to give extra impact protection. It has front and rear crumple zones
Crumple zone
The crumple zone is a structural feature mainly of automobiles. Crumple zones have also been incorporated into railcars in recent years.They are designed to absorb the energy from the impact during an accident by controlled deformation. This energy is much higher than is commonly recognized...

, side impact bars, extended-thickness body panels and strategic spot welds that maintain the integrity of the cabin space. The Colt received a four star rating from the EuroNCAP
EuroNCAP
The European New Car Assessment Programme is a European car safety performance assessment programme based in Brussels and founded in 1997 by the Transport Research Laboratory for the UK Department for Transport and backed by several European governments.-History and activities:Euro NCAP is a...

 test.

Delica

The 2007 Delica D:5
Mitsubishi Delica
The Mitsubishi Delica is a range of trucks and multi-purpose vehicles built by Mitsubishi Motors since 1968. It was originally based on a small pickup truck introduced the previous year, also called the Delica, its name a contraction of the English language phrase Delivery car...

 is built around Mitsubishi’s next-generation RISE unibody design (GS platform
Mitsubishi GS platform
The GS platform is a compact car platform co-developed by Mitsubishi Motors and DaimlerChrysler, which underpins the companies' compact cars. After DaimlerChrysler and Mitsubishi went their separate ways in 2004, DaimlerChrysler made substantial changes to the platform...

). It employs a "rib bone frame" design that uses closed-section joins to link the pillars, roof bows and underfloor cross members in hoops at the pillars and the tailgate
Tailgate
Tailgate is an American English word denoting the door or 'gate' at the back of a wagon, pickup truck, SUV or other similar type of vehicle that is hinged at the bottom and can be opened for the convenience in loading cargo into the rear of the vehicle...

 opening to realize significant improvements in body rigidity and durability as well as to provide better crashworthiness
Crashworthiness
Crashworthiness is the ability of a structure to protect its occupants during an impact. This is commonly tested when investigating the safety of aircraft and vehicles. Depending on the nature of the impact and the vehicle involved, different criteria are used to determine the crashworthiness of...

. It makes more extensive use of rust
Rust
Rust is a general term for a series of iron oxides. In colloquial usage, the term is applied to red oxides, formed by the reaction of iron and oxygen in the presence of water or air moisture...

-resistant steel in the floor structure than the previous generations. Body corrosion resistance has also been significantly improved through the more extensive use of underfloor sealing and with the application of more undercoat. It uses fender panels made of a plastic
Plastic
A plastic material is any of a wide range of synthetic or semi-synthetic organic solids used in the manufacture of industrial products. Plastics are typically polymers of high molecular mass, and may contain other substances to improve performance and/or reduce production costs...

 resin that is flexible and can recover its shape. The switch to this material reduces weight by about 4 kg and makes the fenders more resistant to damage in minor impacts.

Eclipse

The 2005 Mitsubishi Eclipse
Mitsubishi Eclipse
The Mitsubishi Eclipse was a coupe that was in production since 1989 for left hand drive traffic markets. According to Mitsubishi, the car was named after an 18th century English racehorse which won 26 races, and has also been sold as the Eagle Talon and the Plymouth Laser captive imports through...

 is built upon Mitsubishi’s PS platform
Mitsubishi PS platform
The Mitsubishi PS platform, also known as "Project America", is mid-size, front wheel drive platform developed by Mitsubishi Motors North America. It is used for the Endeavor, Galant, and Eclipse...

. It's RISE all-steel structure is made even stronger with strategically placed support members that help create a stiffer, safer unibody. Modern construction techniques include MASH seam welding to improve structural rigidity. Larger side member reinforcements absorb impact energy, dissipating the load toward the rear of the side members. Strategic reinforcements applied to the main body joints result in an overall increase in bending and torsion resistance compared to the previous generations.

Endeavor

The 2003 Mitsubishi Endeavor
Mitsubishi Endeavor
The Mitsubishi Endeavor is a mid-size crossover SUV built by Mitsubishi Motors at their manufacturing facility in Normal, Illinois. Based on the PS platform, it was the first vehicle built under Mitsubishi's "Project America", a program aimed at introducing vehicles for North America without having...

 is also built upon Mitsubishi’s PS platform
Mitsubishi PS platform
The Mitsubishi PS platform, also known as "Project America", is mid-size, front wheel drive platform developed by Mitsubishi Motors North America. It is used for the Endeavor, Galant, and Eclipse...

. It uses RISE unibody structure that employs extensive reinforcement for additional passenger protection in the event of a collision. Robust front subframe members are connected with a dash panel crossmember and a strong, front steel crossmember to help create a rigid, boxed front subframe area. Reinforced side sill members also help disperse energy in the event of a collision
Collision
A collision is an isolated event which two or more moving bodies exert forces on each other for a relatively short time.Although the most common colloquial use of the word "collision" refers to accidents in which two or more objects collide, the scientific use of the word "collision" implies...

. High-strength steel crossmembers across the floor also help absorb side impact energy and help protect occupants. Extensive use of energy absorbing materials appear on the interior and headliner and are used to cover the inside of the front center and rear pillars and help reduce the possibility of injury during a collision.

Galant

The 2003 Mitsubishi Galant
Mitsubishi Galant
The first generation of the car, initially known as the Colt Galant, was released in December 1969. The design was dubbed "Dynawedge" by Mitsubishi, referring to the influence of aerodynamics on the silhouette. Three models were available, powered by the new 'Saturn' engine in 1.3 or 1.5 L ...

 is also built upon Mitsubishi’ PS platform
Mitsubishi PS platform
The Mitsubishi PS platform, also known as "Project America", is mid-size, front wheel drive platform developed by Mitsubishi Motors North America. It is used for the Endeavor, Galant, and Eclipse...

. It uses a straight frame-rail RISE design body that absorbs and disperses energy in the event of a collision and offers improved structural rigidity to prevent longitudinal twisting. It features integrated, energy absorbing crumple zones and strategically applied reinforcements at key body points and steel side impact door beams. Every opening in the body, including doors, boot and engine
Engine
An engine or motor is a machine designed to convert energy into useful mechanical motion. Heat engines, including internal combustion engines and external combustion engines burn a fuel to create heat which is then used to create motion...

 compartment, is reinforced to help resist the bending and twisting forces. The body employs higher tensile strength steel panels to reduce body weight and increase body rigidity. Robust front subframe members are connected with a dash panel crossmember and strong, front steel crossmember to help create a rigid boxed section front subframe area. Reinforced side sill members also help disperse energy in the event of a collision. High-strength steel cross members across the floor absorb side impact energy.

Grandis

The 2003 Mitsubishi Grandis
Mitsubishi Grandis
The Mitsubishi Grandis is a seven seat MPV built by Mitsubishi Motors to replace its Chariot/Space Wagon/Nimbus line. It was launched on May 14, 2003 and is sold in Japan, Asia, Europe, Oceania, Mexico, Honduras, Jamaica, and South America...

 utilizes "straight frame construction", "octangular front side members", and "3-way input distribution cross-dash pillar braces" to minimize cabin deformation while absorbing and distributing impact energy
Energy
In physics, energy is an indirectly observed quantity. It is often understood as the ability a physical system has to do work on other physical systems...

. In addition, Grandis incorporates "tailored blank" technology whereby welds
Welding
Welding is a fabrication or sculptural process that joins materials, usually metals or thermoplastics, by causing coalescence. This is often done by melting the workpieces and adding a filler material to form a pool of molten material that cools to become a strong joint, with pressure sometimes...

 are formed between steel
Steel
Steel is an alloy that consists mostly of iron and has a carbon content between 0.2% and 2.1% by weight, depending on the grade. Carbon is the most common alloying material for iron, but various other alloying elements are used, such as manganese, chromium, vanadium, and tungsten...

 materials of varying thickness for improvements in both impact safety performance and weight reduction due to the optimal allocation of material.

Lancer

The 2007 Mitsubishi Lancer
Mitsubishi Lancer
The Mitsubishi Lancer is a family car built by Mitsubishi Motors. It has been known as the Colt Lancer, Dodge/Plymouth Colt, Chrysler Valiant Lancer, Chrysler Lancer, Eagle Summit, Hindustan Lancer, Soueast Lioncel, Mitsubishi Carisma, and Mitsubishi Mirage in various countries at different times,...

 is built around Mitsubishi’s next-generation RISE unibody design (GS platform
Mitsubishi GS platform
The GS platform is a compact car platform co-developed by Mitsubishi Motors and DaimlerChrysler, which underpins the companies' compact cars. After DaimlerChrysler and Mitsubishi went their separate ways in 2004, DaimlerChrysler made substantial changes to the platform...

). The RISE body structure disperses energy loads during side and rear crashes and controls distortion, enhancing occupant protection and also protecting the fuel system
Fuel tank
A fuel tank is safe container for flammable fluids. Though any storage tank for fuel may be so called, the term is typically applied to part of an engine system in which the fuel is stored and propelled or released into an engine...

 during a rear impact. The highly rigid structure makes extensive use of high-tension steel. It features straight "front side members" with an octagonal "cross-section" and a three-leg support structure, as well as increased application of both high-strength (590Mpa) and ultra-high strength (980MPa) steel. Compared to the previous-generation Lancer, torsional rigidity has been increased by 56 percent, and bending rigidity is up by 50 percent. The side pillars, roof joints and cross-car structure increase collision protection. A collapsible front chassis crossmember and a device to help prevent brake-pedal retraction during a collision contribute to better impact energy management. The pedestrian impact protection
Pedestrian safety through vehicle design
Almost two-thirds of the 1.2 million people killed annually in road traffic crashes worldwide are pedestrians. Despite the magnitude of the problem, most attempts at reducing pedestrian deaths have focused solely on education and traffic regulation...

 has also been increased, with new shock-absorbing hood, cowl
Cowling
A cowling is the covering of a vehicle's engine, most often found on automobiles and aircraft.A cowling may be used:* for drag reduction* for engine cooling by directing airflow* as an air intake for jet engines* for decorative purposes...

 and fender structures and shock-absorbing hood hinges.

Outlander

The 2005 Mitsubishi Outlander
Mitsubishi Outlander
The Airtrek was first introduced to the Japanese market on June 20, 2001, priced from ¥1.7–2.3 million. It offered a choice of either a 4G63 2.0 L or a 4G64 2.4 L GDI, mated to a standard INVECS-II 4-speed semi-automatic transmission. Both front- and four-wheel drive were available...

 (second generation) is also built around Mitsubishi’s next-generation RISE unibody design (GS platform
Mitsubishi GS platform
The GS platform is a compact car platform co-developed by Mitsubishi Motors and DaimlerChrysler, which underpins the companies' compact cars. After DaimlerChrysler and Mitsubishi went their separate ways in 2004, DaimlerChrysler made substantial changes to the platform...

). The RISE body features collision energy absorbing joints designed to reduce the force of the impact that is transferred to the passenger cell. These are constructed with improved thickness and strength engineered into the vehicle frame’s structure. Inner sides of the pillars and roof have impact absorbing rib structures to mitigate head injuries in a collision. A cross frame under the front seat squab restricts forward movement of the occupantin in a frontal impact. It uses more high-tensile steel sheeting to increase stiffness and employs octagonal-section straight front side members and a reinforced cabin environment. An aluminum roof panel lowers the center of gravity and reduces roll inertia. Compared to the previous Outlander, torsional rigidity has been increased by 18 percent, and bending rigidity is up by 39 percent. The Outlander received a four star rating from the EuroNCAP
EuroNCAP
The European New Car Assessment Programme is a European car safety performance assessment programme based in Brussels and founded in 1997 by the Transport Research Laboratory for the UK Department for Transport and backed by several European governments.-History and activities:Euro NCAP is a...

 test.

Pajero

The 2006 Mitsubishi Pajero
Mitsubishi Pajero
The Mitsubishi Pajero is a sport utility vehicle manufactured by Mitsubishi Motors. It was named after Leopardus pajeros, the Pampas Cat which is native to the Patagonia plateau region of southern Argentina. However, since pajero is an offensive term for "wanker" in Spanish, alternative names have...

 utilizes built-in frame monocoque body with crumple zones around the engine to absorb impact energy. Measures taken to boost body stiffness include more spot welds, a stiffer cowl top, switching from 270 MPa grade to 440 MPa grade high tensile strength steel, and the strategic use of structural adhesives. It features stiffer body joins and use of more plated steel sheet for improved durability and reliability. Switching to aluminum has lowered the weight of the engine hood by approximately 9 kg.

Triton

The 2005 Mitsubishi Triton
Mitsubishi Triton
The Mitsubishi Triton is a compact pickup truck produced by Mitsubishi Motors. It was originally known as the Mitsubishi Forte in Japan from 1978 to 1986, when the name was discontinued in favour of the Strada. In the United States two captive imports of the Forte were sold by the Chrysler...

features ladder frame RISE chassis that incorporates front and rear crumple zones with reinforced beams to absorb collision damage and direct it away from the vehicle interior. Engine and drive components also absorb energy. The frame of the new Triton uses enlarged cross sections to increase frame rigidity (70% higher bending rigidity and 50% higher to rational rigidity than the previous generation), improving cabin safety and straight-line stability while reducing body vibration. Beads carved in frontal frame sections also absorb collision impact.
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