HOMOLOGATION ENGINEERING · EARLY RISK IDENTIFICATION

Pre-Homologation Risk Review

Early technical review of vehicle designs, components and documentation to identify potential regulatory risks before testing and approval.

REVIEW LOGIC
Critical Risk

May prevent testing or approval

Action Required

Requires evidence or revision

Reviewed

No immediate issue identified

EARLY TECHNICAL REVIEW

Homologation risks should be identified before the vehicle reaches the test stage

Vehicle approval problems frequently originate from decisions made during packaging, structural design, component selection or documentation preparation. When these issues are discovered late, they can cause redesign, repeated testing, additional cost and project delays.

TLG SYSTEMS reviews the available vehicle design and technical documentation before formal testing to identify potential gaps, conflicting information and approval risks requiring action.

01

Testing should confirm the design—not reveal the design strategy

The vehicle configuration, applicable requirements and required evidence should be understood before the official test programme begins.

REVIEW AREAS

Technical areas examined before homologation

The scope is defined according to the vehicle category, approval route, base chassis, conversion level and available project information.

01

Vehicle Configuration

Review of vehicle category, intended use, dimensions, mass limits, seating capacity, variants and market configuration.

02

Structural Design

Review of structural modifications, reinforcements, body interfaces, load paths and potential approval implications.

03

Weight and Axle Loads

Preliminary assessment of vehicle mass, payload, passenger distribution, equipment positions and axle-load margins.

04

Component Compliance

Review of component approvals, markings, certificates, installation conditions and compatibility with the intended vehicle.

05

Passenger and Door Areas

Review of entrances, exits, gangways, steps, seating, emergency systems, access dimensions and passenger-safety interfaces.

06

Technical Documentation

Review of drawings, calculations, approval documents, test reports, component lists and vehicle configuration consistency.

TYPICAL RISK CATEGORIES

Issues that can affect approval timing and test readiness

Each identified issue is recorded with its technical basis, potential project impact and recommended next action.

01

Missing or inconsistent vehicle configuration information

02

Unverified component approvals or incorrect installation conditions

03

Insufficient dimensional clearance or passenger-access compliance

04

Vehicle mass or axle-load margins outside acceptable limits

05

Structural modifications without adequate technical evidence

06

Drawing, calculation and physical vehicle configuration conflicts

07

Missing test evidence, certificates or approval documentation

08

Late design changes affecting previously reviewed systems

REVIEW OUTPUT

A structured technical risk review

The review output is prepared to support engineering decisions and project planning before formal approval activities begin.

A

Risk Register

Identified technical risks grouped according to subject, severity and potential approval impact.

B

Open-Item List

Missing information, documents, calculations, certificates and design decisions requiring completion.

C

Recommended Actions

Proposed engineering, documentation or testing actions for resolving the identified issues.

D

Readiness Summary

A consolidated view of the vehicle’s preparation status before technical-service coordination or testing.

REVIEW PROCESS

From project input to homologation action plan

01

Scope Definition

Vehicle category, intended markets, approval route and current project stage are defined.

02

Data Review

Drawings, calculations, component documents and vehicle information are examined.

03

Risk Classification

Issues are classified according to severity, approval impact and required technical action.

04

Action Planning

Required design changes, evidence, tests and documentation activities are organised.

PROJECT APPLICATIONS

Suitable for new vehicles, conversions and market adaptations

Bus and Coach Projects Minibus and Midibus Conversions Special-Purpose Vehicles Alternative-Fuel Vehicles Electric Vehicle Integration New Vehicle Derivatives Base-Chassis Conversions Market-Specific Adaptations Approval Extensions Design Change Reviews
Important responsibility statement

TLG SYSTEMS provides preliminary engineering and documentation review support. A pre-homologation review does not constitute official approval, certification or confirmation of compliance. Final assessment, testing, certification and approval remain with the vehicle manufacturer, approval holder, designated technical service and responsible approval authority.

REVIEW BEFORE TESTING

Identify technical approval risks while changes are still manageable

Send the available vehicle drawings, component documents and project information for an initial scope review.

SEND PROJECT DATA