Toyota Motor Manufacturing Usa Case Study
Essay by Congai27 • April 2, 2016 • Case Study • 788 Words (4 Pages) • 1,981 Views
03/17/2016
Group Name: TER
Course Name:
BA452/M Operations Management
Group Members:
Tu Thi Thanh Tran 150105012
Hui Fen Chen 150105005
Roisin Gonsalves 150105009
Case Study:
Toyota Motor Manufacturing, U.S.A.,Inc.
Introduction
Toyota Motor Corporation (TMC) is one of the most famous cars manufacturing in the world, which produces automobile with good quality and meets customers’ requirement in terms of the diversity preference with reasonable price. In 1988, Toyota Motor Manufacturing attempted to expand the business area to build cars in North America and began producing in Georgetown with a yearly capacity of 200,000 Toyota Camry Sedans. During this period, the new Camry occupied 1/3 of the total American Car market and had 17% earning before tax margin due to more than 20 % sales growth in 1992. However TMM was facing problems regarding to the seat supply and the line utilization rate was below target as increasing number of cars with defective seats or no seats in the line as well as the growing demand in varieties.
Toyota Production System
To identify the waste in the process by two principles:
Just In Time (JIT) production | jidoka |
|
|
Advantage: Reduce cost & avoid overproduction | Advantage: Avoid further damage as the production line will stop when pulling and on cord |
Problems:
1. Seats need to be matched with each particular car; however, stock parts cannot be used in manner time.
There is an option to stop the line until the replacement seat is available that lead to the massive productivity losses. Moreover, KFS delivers seat replacements twice a day, but sometimes, they still send incorrect seat replacement. As a result, the replacement seat cannot be installed in a timely manner that leads to several four –day old vehicles in the overflow parking area.
Let’s look at the Run Ratio Changing affecting to “ Lost Cars Per Shift “.
On April 27th the run ratio was down from 95% to 85%. ( 10%)
Stations on conveyor line | 353 | |
Team members | 769 | |
Average wage | $17/hour | |
Overtime | $17+17x50%=25.5/hour | |
Shift duration | 525 mins | |
Cycle time | 1.05 cars/min | A line cycle time of 57 seconds |
Productive shift mins | 525-45-15x2=450 | |
Run Ratio | 100% | 473 (1.05x450=472.5) |
95% (450/473) | 450 | |
85% (402/473) | 402(0.85x473=402.05=402) | |
Shortfall of cars Per shift | 450-402=48 | |
Cost per hour for overtime | 769x25.5=19609.5 | |
Time required for additional car | 50mins | ( 1.05 x 48 cars) |
Cost for producing for additional car | 25.5/60x50x769=16341.25 |
...
...