🛑 Purpose And Operation Of Advanced Accessories :-
1) Automatic Headlight Dimming :-
The automatic headlight dimmer is a driver operated device which automatically switches headlights from high to low (and low to high) beam in response to light from an approaching vehicle or light from the tail light of a vehicle being overtaken.
Major components of the system are as follows:
1. Sensor Amplifier:
- On some vehicles, the unit is located between headlights on driver side while that of on some vehicles, it is located in engine compartment attached to left side of radiator.
- The unit is adjusted for sensitivity and then sealed by an epoxy material to prohibit excess adjustment.
2. Power Relay:
It provides heavy duty contacts for switching headlight beams. A relay contains a diode for damping purpose to protect sensor amplifier. It is necessary to observe proper polarity while connecting a relay to prevent damage to the diode.
3. Sensitivity Control:
• Driver sensitivity control is the ring knob on the headlight switch. Rotating the knob clockwise Increases sensitivity and headlights will switch to lower beam when approaching vehicle is farther away.
• Rotating knob counter-clockwise decreases sensitivity, allowing approaching vehicle to come nearer before headlight switching occurs.
- Full counter-clockwise rotation allows for manual operation of headlight switch beams.
4. Foot Dimmer Switch:
- This switch is a special dimmer override type that replaces standard switch. One switch position provides automatic control of headlight beams; other position is for low beam.
- With switch in automatic beam control position, a slight downward pressure on switch provides upper beam, regardless of amount of light on sensor-amplifier lens.
5. Sensor-Amplifier Vertical Aiming:
- Sensor-amplifier vertical aiming should be performed with vehicle unloaded, fuel tank at least half full, and tyre pressure correct (as per manufacturer's specification).
- Adjust vertical aiming screw at rear of bracket assembly until the bubble is centered in the level.
Note: Do not tamper with the screw at the end of level. Always make final adjustment while turning aiming screw clockwise.
2) Automatic ON/OFF Headlight With Time Delay :-
- Autolamp system provides light sensitive automatic ON-OFF control of headlights in conjuction with normal headlight switch operation. A light delay feature is also used to keep headlights ON N for a preselected time period after ignition is turned OFF and driver has left the vehicle.
- Time lapse can be varied upto 4.5 minutes before lights turn OFF automatically. Autolamp system consists of a light sensitive photocell assembly, transistorized amplifier, and a time delay control which includes an ON-OFF switch.
Operation:
- Autolamp system wiring parallels the regular light switch wiring, and headlight switch must be turned OFF, and autolamp control turned ON for system to operate automatically. Autolamp control switch is located behind headlight switch knob.
- In normal operation, system will turn headlight ON when natural outside light available to photocell decreases below a predetermined level, such as at sunset. Also, lights will automatically turn OFF if level of outside light exceeds a predetermined level during daylight hours.
• System photocell is mounted under a group of perforated holes in upper instrument finish panel on left side. Turning the autolamp control away from OFF position will increase lapsed time before headlights turn OFF after turning ignition switch OFF.
- If vehicle is equipped with headlight covers, system will synchronise and control cover opening and closing.
- Fig. 4.2 shows a wiring diagram for Automatic ON/OFF headlight with time delay.
3) Keyless Entry System :-
- A keyless entry system Is an electronic lock that controls access to a vehicle without using traditional mechanical key. The term keyless entry system originally meant a lock controlled by a keypad located at or near the driver's door, that required pressing a predetermined (or se programmed) numeric code for entry.
- These systems, having evolved into a hidden touch-activated keypad, are still available on certain vehicles.
- Remote keyless systems (RKS), also known as keyless entry or remote central locking, are locks that use an electronic remote control as a key that is automatically activated by a proximity switch or a portable device.
- Widely used in automobiles, a Remote Keyless System performs the functions of a standard vehicle key without physical contact. Within a few yards of the car, pressing a button on the remote can lock or unlock the doors, and may perform other functions.
- A remote keyless system can include both a remote keyless entry system (RKE), which unlocks the doors, and a remote keyless ignition system (RKI), which starts the engine.
- Figure 4.3 shows a simple block diagram of a keyless entry system. Remote keyless entry systems, which are now a fairly common device, offer some convenience to car owners, making the task of actually entering the key unnecessary
- Keyless remotes have a long range radio, and must be a certain distance from the vehicle, about 5-20 meters (15-60 feet), to work. When the button is pushed, it sends a signal packed with radio waves to the receiver unit of the car, locking or unlocking the door.
- Most remote keyless entry systems operate at a frequency of 315 MHz for American cars and 433.92 MHz for European, Japanese and Asian cars.
- The system indicates that he has locked or unlocked the car, usually through a very clever combination of flashing car lights, a special sound other than the horn, or some use of the horn itself
- A typical configuration for a car is for a horn or other sound to sound twice to indicate unlock, once to indicate lock while two beeps indicate the driver's door is open, and four beeps to indicate the doors are unlocked all. One long beep is for the trunk or power high door. A short beep indicates that the vehicle is locked and the alarm is set.
- The function of the Remote Keyless Entry system is either located on the key fob or integrated into the Ignition key handle itself. The buttons are dedicated to locking or unlocking doors and opening the trunk or tailgate.
🛑 Conclusion :-
In conclusion, modern driving is much more comfortable and safe, with key-entry systems, automatic ON/OFF delay ignition switches, and drivers actually slowing down, in addition to improving the performance of your car, that much these features help make driving smarter and more comfortable. The long ON/OFF switch provides excellent night driving and high visibility without blinding other drivers when actually used. In contrast, keyless technology offers unparalleled security and vulnerabilities. Purchasing these upgrades not only improves the performance of your vehicle but also provides you with a pleasant and safe ongoing commute.
🛑 Other Topics :-
1). Autonomous Driving Explained: A Beginner’s Guide to Self-Driving Cars
2). Adaptive Cruise Control: The Future of Safer Driving
3). Advanced Driver-Assistance Systems (ADAS): Revolutionizing Modern Vehicles
4). Spark Plug 101: Everything You Need to Know.
5). Turbocharger 101: Everything You Need to Know About Boosting Engine Performance.
🛑 Please Also Ask :-
1) What are the most essential car accessories?
9 Crucial Add-ons to Improve Your New.
- Seat Covers' Comfort and Style.
- Floor mats combine protection and comfort.
- Safeguard and customize
- steering wheel cover.
- Grip and Comfort.
- Car Organizer. Keep it neat. Apply some shade.
- Protect Your Interior.
- Bluetooth Adapter or Car Kit.
- Air fresheners, a portable phone mount, and staying connected.
2) What is innovation in a car?
Modern technology and ideas used in automotive innovation help to deliver efficiency, comfort, safety, and performance improvement as well as convenience. The automotive industry has combined improvements to existing components and introduced new concepts to create lighter, faster, more fuel-efficient, and safer vehicles.
3) What is the newest car technology?
Seven Technologies Shifting the Automobile Sector Towards 2025!
- Autonomous Emergency Braking.
- Connected Cars.
- Electric Vehicles.
- Fuel Cells.
- Self-Driving Cars.
- Car Sharing.
- In-Car Entertainment.
4) Why are luxury cars popular?
Luxury automobiles are entertaining to drive, perform better than economy cars, and let their owners feel successful, so many buy them.
5) What is the future of cars?
Increasingly strong hybrid or electric engines will progressively replace conventional internal combustion engines in the years to come.
It is the most spectacular revolution. Tomorrow, cars will be able to do without their drivers.
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