Flowchart Process

Automotive Remote Keyless Entry Fob

Automotive Remote Keyless Entry Fob

Blanca del Pilar Greco

University of Phoenix

International Operation Management

Susan Fitch


Automotive Remote Keyless Entry Fob
The Car??™s Innovate Company (CIC) seeks to introduce a new version of an automotive keyless entry fob for our new car version. This new product needs four main parts that comprise the remote: the control chip, the rolling transmitter, the plastic housing and the key ring. In this assignment, I need to buy those parts from suppliers in different countries to obtain the best final product with quality and keeping the cost investment into a regular basis.
A remote keyless system is designed to remotely permit or deny access to premises or automobiles and can include both a remote keyless entry system (RKE) and a remote keyless ignition system (RKI). The functions of a remote keyless entry system are contained on a key fob (generally decorative and an useful item that many people often carry with their keys, on a ring or a chain, for ease of tactile identification, providing better grip, or to make a personal statement) or built into the ignition key handle itself.
Buttons are dedicated to locking or unlocking the doors and opening the trunk or unlock /open the rear tailgate (on sport utility and station wagons vehicles). Some cars will also close any open windows and roof when remotely locking the car. Some remote keyless fobs also feature a red panic button which activates the car alarm as a standard feature. Some cars engines with remote keyless ignition systems can be started by the push of a button on the key fob.
Remote keyless entry (RKE) has captivated automobile buyers becoming extremely popular, as evidenced by the popularity of RKE on new automobiles and as an after-market item. The installation rate for RKE systems in new vehicles is more than 80% in North America and more than 70% in Europe. European automakers are incorporating the technology in vehicles in cooperation with insurance companies, who in turn, require it as a condition for acquiring auto insurance. That trend began in Germany, and is expected to spread throughout Europe within a few years.
Most of these systems employ one-way (simplex) communications. But second- and third-generation systems may talk back to the key, telling you that the car needs gas or more pressure in the left front tire.
An RKE system consists of an RF transmitter in the key fob (or key) that sends a short burst of digital data to a receiver in the vehicle, where it is decoded and made to open or close the vehicle doors or the trunk via receiver-controlled actuators. The wireless carrier frequency is currently 315MHz in the US/Japan and 433.92MHz (ISM band) in Europe. In Japan the modulation is frequency-shift keying (FSK), but in most other parts of the world, amplitude-shift keying, or ASK is used. The carrier is amplitude modulated between two levels: To save power, the lower level is usually near zero, producing complete on-off keying (OOK).
We need to acquire the main products to create a remote keyless entry fob that offer better options to actual and potential buyers interested in our cars.
1. Control Chip: After exhaustive research I found the Chinese company ???Intelligence Uni-ID (Shenzhen) Inc??? dedicate to design and manufacture vehicle alarm system, TPMS, reverse radar and remote engine starter etc. Our interest is addressed to the vehicle Remote Keyless Entry System (RKE) and the Passive Keyless Entry (PKE).
The Remote Keyless Entry System enables the locking and unlocking of the car doors without having to insert a key into the door lock of the car. By depressing the button on the key fob, an encoded ultra high frequency (UHF) signal is transmitted to the receiver module located in the car. The receiver module authenticates the signal. Upon positive recognition, it instructs the electronic control module (ECU) to toggle the lock.
The Passive Keyless Entry (PKE) System is a new electrical product for vehicles, safer and more convenient for users than the old RKE system. The PKE system uses RFID technology, providing the highest security available as: Completely Passive Keyless Entry, Automatic door locking (Arming), Automatic door unlocking (Disarming), Vehicle Immobilization, Unclosed door warning, Closes windows automatically, etc.
The main functions of PKE are: Passive door locking, Unlocks doors automatically, Immobilizer function protection against vehicle theft, Closes Windows Automatically, Hi-classify Safety, Convenient thin Smart Key, Alarm accuracy, Unclosed door alarm, Exhausted Battery Emergency Operation Mode, Low battery reminder, Nullifies frequency jamming devices, Stops code scanner yard sweeping dead in its tracks, etc.
2. Rolling Transmitter: I try to found some rolling transmitter manufacturer in predetermined countries but according with the different research, I can??™t found a real company that manufacture this product for that reason I choose a Chinese company Zhongshan Victor Electronics Co., Ltd. Which produce this part with the following features: 1) Ultra-long FSK communication range (two-way range over 1000m), 2) Visual and audio alert on remote, 3) Car/alarm status LCD display on remote, 4) Anti-carjacking system, 5) Silent arm/disarm/alert, 6) Automatic windows roll-up output, 7) Automatic dome light supervision, 8) Remote trunk release, 9) Interface of microwave sensor or ultrasonic sensor , 10) Remote start bypass output and timer mode, etc.
3. The Plastic Housing: The plastic housing company supplier is located in the United States and has been serving the automotive industry since 40 years ago acquiring experience with the Production Parts Approval Process for OEM Suppliers (PPAP) and the intricacies and requirements involved:
??? PPAP is a set of requirements regularly used throughout the automotive industry
??? PPAP ensures fast, efficient, accurate completion of process(es) by OEM suppliers and other outsourced manufacturers
??? PPAP standards help expedite a project into production.
The Stack Molds are high production injection molds for multiple parting lines as the automotive keyless entry fob and is custom designed and built to meet the needs of a specific project offering an economical and efficient manufacturing solution for the production of multiple plastic parts. A few of the benefits of the stack molding process include: a) Increased output efficiency (productivity), b) Decreases number of machines required, c) Lower machine size requirement vs. multi cavity single face molds, d) Produce twice as many parts without increasing press size or clamp tonnage, which greatly reduces part costs, e) Set-up time and run-time costs are divided by all the parts produced, etc.
Injection molded plastic parts are used extensively throughout? automobile construction, from the interior and exterior, to the fuel and under-hood systems.
This? keyless entry remote housing for CIC vehicles is a ???stack molds??? that allow large volumes of multiple parts to be produced at the same time, the front and back pieces of this key fob.
4. Key Ring: The Key Ring company supplier is located in China and its function is holds keys and other small items, which are sometimes connected to key chains. The most common form of the key ring is a single piece of metal in a double loop. Either end of the loop can be pried open to allow a key to be inserted and slid along the spiral until it becomes wholly engaged onto the ring. Often the key ring is adorned with a key fob for self-identification.
Other forms of rings may use a single loop of metal or plastic with a mechanism to open and securely close the loop.
Our product will use the Batch shop system where is a somewhat standardized job shop. Such a structure is generally employed when a business has a relatively stable line of products, each of which is produced in periodic batches, either to customer order or for inventory. The company produces 835,000 cars per years which mean that we need to ensemble the same quantity of keyless entry fob for each car.
The operations managers have to consider different factors while are making process design? decisions as
a) Nature of Demand: Our Company needs to produce products or services based on customer needs and preferences scheduling the production to be able to meet the estimated future demand levels considering factors like seasonality, growth trends, and other demand patterns that affect future demand levels.
b) Influence of price level: The price-volume or the demand curve influences the process design. As customers are price-sensitive, they have a tendency to buy more of a product at a low price and less at a high price.
c) Degree of vertical integration: Vertical integration is the extent to which the production and the distribution chain are brought under the ownership of the organization determining the extent to which a product and its components are produced internally. Vertical integration is of two types: 1) Forward integration is the expansion of ownership of production to the distribution chain, towards the market and 2) Backward integration is expanded backward or toward the sources of supplies. Operations managers should evaluate the pros and cons of vertical integration before deciding on its implementation.
d) Flexibility: Organizations have to be flexible in order to increase or maintain their market share and responds quickly to the changing customer preferences or market conditions. Flexibility can be broadly classified into: 1) Product/service Flexibility: The ability of the production system to shift quickly from producing one product to another. 2) Volume Flexibility: The ability to increase or decrease production volumes rapidly in response to external changes is referred to as volume flexibility.
e) Degree of automation: Operations managers should decide on the degree of automation required for their production processes. The quality levels of a product or service decide its competitiveness in the market and affect the production process design at all stages of production. The desired level of quality has direct implications for the degree of automation and the extent of customer interaction and contact required for the production process.
In our case, those factors can affect our process design in different ways. Per example, the nature of car demand because if our car is not accepted or captive the clients attention, the sales will be affected and maybe cause that our profits decrease in a considerable amount. The Price level might affect the sales and market participation of the company, etc.
Process design measurement give to the operation manager a gauge on how productively a process currently is operating and how productivity is changing over the time. I will use the following metric measurement for our case:
Run Time: Is the time required to produce a batch of parts.
RT = Time required to produce each unit * batch size.
To get an accurate number I will define that each day, the firm produce 2,000 units of automotive keyless entry fob.
RT = (5+7+3+8+2+2+1+3+1) / 2, 000
RT = 32/2,000 => RT = 0.016
This project was very interesting and a big challenge for me. Is important to understand the operation management of different kind of companies because each process will be creates in the best way and generating efficiency and performance for the company and customers.

Blake, D. Major Factors Affecting Process Design Decisions, Retrieved on May, 2010 from http://www.associatedcontent.com/article/1188168/major_factors_affecting_process_design.html
Chase, R. B., Jacobs, F. R., & Aquilano, N. J. (2006). Operations management for competitive advantage (11th ed.). Boston: McGraw Hill/Irwin.
Key Ring retrieved on May, 2010 from http://en.wikipedia.org/wiki/Keyring
Passive Keyless Entry System retrieved on May, 2010 from http://www.microchip.com/stellent/idcplgIdcService=SS_GET_PAGE&nodeId=2876
Rolling Transmitter retrieved on May, 2010 from http://www.himfr.com/buy-rolling_code_transmitter/