TETHER

TETHER: robotic arm and AI, Tx only, invisible Rx, no cable. Wall box and underground. 3, 6 and 11 kW.

TETHER is a robotic inductive charging system with AI vision and alignment. There is no cable. The arm carries only the Tx and finds the Rx by itself — under the floor on vehicles already built, or invisibly in the body on vehicles still to be built. The Rx is never visible on the exterior. Two installations: wall box and underground. Models 3 kW, 6 kW and 11 kW. All specifications are targets until physical validation.

TETHER sequence — illustration

Not footage of a prototype on test. Illustrated film (~43 s): empty floor → vehicle → sliding covers → Tx flush → wall box.

Wall box closed — Fig. TH-01Closed wall box: at first glance only the box. No cable, no arm in view.

Wall box robotic Tx — Fig. TH-02After the vehicle is identified the robotic arm deploys the Tx and the AI finds the invisible Rx. No cable.

Underground closed — Fig. TH-03Closed pit: nothing visible on the floor. The box cover is flush.

Underground open — Fig. TH-04Flush concrete covers slide from the centre to both sides at floor level. The Tx stays flush — it does not rise from a pit. No cable.

3 mm

Wall box

At first glance it is only a box on the wall. When the vehicle enters the bay and is identified, the door opens and the robotic arm deploys the Tx. The AI locates the Rx — under the floor on existing fleets, or in the body (invisible) on new production — and corrects misalignment. No cable.

Underground

In the normal state nothing is visible on the floor: the covers are concrete, flush and the same colour as the ground. When the vehicle is in position the covers slide open by themselves from the centre to both sides, still flush with the floor. The Tx stays at ground level — it does not rise from a pit. When finished the covers close and the floor is flush again.

Sequence — advance the step

01Vehicle enters the bay
02Vehicle identification
03Box door opens
04Robotic arm deploys the Tx
05AI finds the Rx (under floor or in the body, invisible)
066-DOF misalignment correction
07Charge air gap
08Cable-free charge 3 / 6 / 11 kW
09Arm retracts the Tx
10Door closes
11Again: only a box on the wall

3kW

TETHERtarget

6kW

TETHERtarget

11kW

TETHERtarget

Fig. TH-03Depot baysplan

Envelope and targets

Closed appearance	only the wall boxtarget
Envelope	60 × 50 × 18–22 cmtarget
Actuator	robotic arm; Tx onlytarget
Cable	nonetarget
On-vehicle Rx	invisible (under floor or in the body)target
Alignment	AI, 6-DOF, ±2 mmtarget
Models	3 kW · 6 kW · 11 kWtarget
Efficiency	≥ 85 %target
Ingress	IP67 head · IP65 boxtarget
Install	lower edge 10 cm from floortarget

Normal state	nothing visible on the floortarget
Cover	opens and closes automaticallytarget
Actuator	flush sliding covers; no cabletarget
Rx	invisible on the vehicletarget
Use	forecourts and depots without a useful walltarget
Models	3 kW · 6 kW · 11 kWtarget