The first order of this ladder is made of wood base material, until the material of iron steel was present in 1930. In the USA, most cars use a ladder type chassis than the monokok type. This happens because car manufacturers in America think that a car that uses a ladder-type chassis will be more easily replaced his design (facelift) without having to change the chassis.
The construction of the 2nd parallel steel ladder chassis under the vehicle body. has an advantage in carrying more load and larger cabin space. often used in load vehicles such as trucks, MPV and SUVs and jeep models. This is why Innova is created using a ladder chassis amidst the monumental chassis trend. "Interesting to see why in the midst of the current monocoque trend, Kijang Innova still equipped with a ladder chassis. Our 2001 survey results show that the ladder chassis is the wisest choice for family cars for up to 10 years.
The reason is, the condition of road infrastructure that has not been adequate so it needs a tough vehicle. So that the ladder chassis still diminiati consumer spread across the world.
Not only that, the presence of the ladder chassis also makes the engineer team more easily isolate the vibration and noise due to the road so that the rear cabin to be comfortable. Something that is difficult to get on MPV front and bersokok monokok.
This is why the ladder chassis becomes unique.
The advantages of this ladder chassis model are as follows:
• Easy to design, build, and modify.
• More suitable for heavy vehicles that like off-road and more durable.
• Easy to repair in case of collision.
The disadvantages of this ladder's chassis are as follows:
• Heavier than other model chassis, its performance is lower than other model chassis, and fuel consumption becomes larger.
• Torque is lower when passing the bend.
• Easy to roll over.
• Has higher production costs.
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