AmbiOBU — a domestic on-board unit, built on hardware already on Indian roads.
India's draft mandate would require a factory-fitted, AIS-230-compliant C-V2X on-board unit in every new L, M and N category vehicle from October 2028, in a market that as of April 2026 had no domestic OBU manufacturer and imported all such hardware. AmbiOBU is the development platform addressing that gap.
It is a development platform, and we are looking for a partner to take it to production — an OEM with a fitment deadline, a tier-1 with an integration programme, or a fleet operator with a pilot. The hardware baseline exists and has been on the road for years in another form. What it needs is a deployment to be designed against.
AmbiLogistics is not a prototype.
It is Ambimat's existing, field-deployed vehicle tracking platform: GPS-capable, IMU-equipped, cellular-connected, and validated on Indian roads in Indian conditions. AmbiOBU evolves that hardware by adding V2X sensing and integrating the AmbiSEC secure element for PKI-signed V2X message broadcasting.
That heritage matters for a specific reason. The hard parts of an Indian on-board unit are not the V2X modem, which is a purchasable part. They are thermal behaviour in a 48 °C ambient, vibration on Indian road surfaces, GNSS performance under dense urban multipath, cellular behaviour on Indian networks, and manufacturing at a cost point that works on a two-wheeler. Ambimat has shipped hardware against all five.
The AmbiLogistics-derived baseline, not an AmbiOBU datasheet.
The AIS-230-aligned specification supersedes the table below and is pending. Read this as the hardware lineage rather than as a published product specification.
| Component | Specification |
|---|---|
| GNSS | Real-time tracking, geofencing with safe-zone exit notification |
| IMU | 9-axis — accelerometer, gyroscope, magnetometer; motion, orientation, hard-event logging |
| Environmental | Ambient temperature, relative humidity, barometric pressure |
| Cellular | 4G LTE uplink |
| V2X security | PKI-signed V2X messages via the AmbiSEC hardware secure element |
| Positioning | Cellular plus GNSS dual-mode for redundancy |
| Power | USB-C charging, off-the-shelf battery pack, LED multi-function indicator |
| Enclosure | Weatherproof, specified for Indian ambient conditions |
The Uu side needs a cellular identity that outlives the SIM slot nobody built.
An AIS-230 unit is dual-mode: PC5 for direct safety messaging, Uu for network-assisted features. The Uu path is what carries certificate batches, trust-list updates and firmware — which means the unit needs a cellular identity that survives a fifteen-year service life and possibly several markets, in a sealed enclosure. In practice that is an embedded SIM provisioned remotely, not a card. Ambimat's eSIM and eUICC work sits on a sister property and is part of the same conversation. Why the Uu side needs a subscription →
What the platform is being designed against.
- C-V2X on 5.9 GHz — aligned to the TRAI spectrum proposal and the G.S.R. 466(E) licence exemption for 5875–5905 MHz. The band →
- PKI-signed message broadcasting — aligned to the TRAI cybersecurity direction and the AIS-230 security requirements. The draft mandate →
- Hardware-backed key storage via AmbiSEC — the property MTCTE cybersecurity testing should treat as pass/fail. Why →
- Secure OTA over cellular via AmbiOTA.
These are design and compliance references. They are not assertions that the platform carries any formal certificate.
A development platform, not a product you can order.
AmbiOBU is not in production deployment. ISO 26262 and Automotive SPICE conformity for the integrated unit are targets, not claims. The engagement model is co-development, not catalogue purchase.
What we bring: 44 years of embedded hardware design and manufacturing under one roof; a vehicle platform already validated on Indian roads; the AmbiSEC security layer; secure boot, OTA and HSM-backed provisioning; and certification support experience across FCC, CE and Indian conformity regimes.
What we are looking for in a partner: a defined vehicle programme or fleet, a target market and its conformity regime, and a realistic volume horizon. Two- and three-wheeler programmes are of particular interest, because that is where the mandate bites hardest and where almost nobody is building.
Where this fits.
AmbiSEC
The secure element inside it, and the applet that manages its credentials.
India regulation
AIS-230, the October 2028 date, and the six open questions.
V2V
The four safety applications AIS-230 specifies first.
Hardware root of trust
The verification-throughput question every OBU proposal should answer.
AmbiRSU
The roadside counterpart, on the same security architecture.
eSIM and eUICC
The cellular identity the Uu path depends on.
Have a vehicle programme that needs a V2X on-board unit?
Bring the vehicle category, the target market and the timeline. We will bring the hardware baseline, the security architecture and an honest view of what it takes to get from here to a type-approved unit.