Radio-controlled Systems
Radio-controlled Systems

Developed specifically for use under harsh conditions. This system gives the driver
a convenient way of unlocking the cab door. The remote control can be equipped with one or two buttons, depending on the customer´s requirements. An additional control unit capable of sending up to four output signals allows lamps to be activated such as worklights or beacons. HELLA’s radio control system can easily be used to activate direction indicators and to release or lock covers, such as to engine compartments or
toolboxes. The design can be customised on request, such as for incorporating customer-specific logos.

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Radio-controlled Systems

In terms of electronics, the radio transmitter consists of the radio transmitter electronics and a transponder. The transponder responsible for the immobiliser function is independent from the radio transmitter electronics and can be set specific to a customer.
The radio transmitter electronics are installed onto a doublesided printed circuit board. The printed circuit board contains the lock/unlock button and any other additional buttons (additional functions) in addition to the actual radio transmitter electronics. Spring contact elements are used to provide the electrical connection between the printed circuit board and battery. Pressing a button transmits the remote control data provided with a rolling code and state-of-the-art 128-bit encryption. If the receiver control unit of the radio remote control has positively decrypted the data, it activates the output signal of the control unit.

The radio control system can be used in every European country and also in North America (USA + Canada) without limitations. System radio approvals outside Europe can be carried out in
consultation with HELLA.

The radio remote control is equipped with a holder for a mechanical key bit. The mechanical key bit is not included in the scope of delivery for the radio transmitter electronics. The key bit
is usually mounted (by using a special mounting device) either at the customer's premises or at the manufacturer's. Two radio transmitter keys are "taught-in" and assigned to the device during production of the radio receiver. Teaching additional radio transmitter keys in the field requires at least one functioning, taught-in key. For radio remote controls with two buttons, up to 7 radio transmitter keys can be taught in. If the maximum number of radio transmitter keys has already been taught in, the last key place is overwritten when teaching in another key. If the radio remote control only has one button, no keys can be subsequently taught in.

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Technical Data for Radio Transmitter

Key bit – joining force max. 350 N
Key bit – extraction force > 180 N
Torque around the key roll axis 3 Nm
Torque around key width axis 4 Nm
Separation of housing parts,
joining/separating force:
110 N (in new condition)
Housing cover PA66+PA6I/X-GF50 and TPU
Housing base PA6-GF30
Contact elements X10CrNi 18-8
Customer logo: PU logo, customised
Key field: Hytrel black
Transmission frequency 434.42 MHz
Transmission power 30 μW ERP
Battery type1) CR2032
Life of battery: 100,000 clicks
(approx. 3 years)
Max. range2) 119 m
Min. range2) 51 m
Average Range2) 70.5 m
Operating temperature - 20 °C to + 60 °C
Storage temperature - 20 °C to + 60 °C
Protection class IP 6K7 and IP X5

 

1) A battery is included in delivery of the radio transmitter.
2) Ranges are dependent on installation position and interference factors. The values specified are representative and must be validated for each new application.

Technical Data for Radio Receiver

Operating voltage 6 – 32 V
Power consumption 11 mA (signal output not activated)
Idling current < 2 mA
Min. voltage: 6 V
Max. voltage: 58 V for 250 ms
Nominal voltage 12 / 24 V
Test voltage 27.6 ± 0.4 V
Overvoltage 36 V (at 40 °C, 1 hour)
Housing cover Recycled PC
Housing base Recycled PC
Male connector housing PBT-GF20, V0
Operating temperature - 40 °C to + 80 °C
Storage temperature - 40 °C to + 90 °C
Protection class IP 5K0
Length 51 mm
Width 45 mm
Height 21.5 mm
Mating connector1) 17848 000 000

 

1) This accessory is not included in the scope of delivery.
It may be purchased directly from Lear.

Receiver Basic Version

Pin and configuration Function Description
1 Positive pole Input Power supply (+12/24 V)
2 GND Input Power supply (ground)
3 Door control module Output Low active (<300 mA), signal duration of
3.5 s if button 1 is pressed
4   Not assigned
5 Reserve Output High active (<300 mA), signal duration of
0.5 s if button 2 is pressed
6   Not assigned
7   Not assigned
8   Not assigned

 

Receiver Extended Variant

Pin and configuration

Function

Description

1 Positive pole

Input

Power supply (+12/24 V)

2 GND

Input

Power supply (ground)

Mode 3:

Input signal

Mode = low or mode = high (high at 70% of vehicle electrical system voltage)

4  

Not assigned

5 Door 1

Output

High active (< 300 mA) when pressing button 1; mode = low: signal duration 3 s, mode = high: signal duration 0.5 s

6 Door 2

Output

High active (< 300 mA) when pressing button 2; mode = low: signal duration 3 s, mode = high: signal duration 0.5 s

7 Wake up function

Output

High active, (<300 mA), signal duration of 3.5 s

8 Reserve

Output

High active (<300 mA), signal duration of 3 s if button 2 is pressed

 

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