{
  "url": "https://openlegislation.uk/eu-regulation-2017-2400/annex-IX/division-3/division-3.2",
  "json_url": "https://openlegislation.uk/eu-regulation-2017-2400/annex-IX/division-3/division-3.2.json",
  "legislation": "eur/2017/2400",
  "legislation_title": "Commission Regulation (EU) 2017/2400 of 12 December 2017 implementing Regulation (EC) No 595/2009 of the European Parliament and of the Council as regards the determination of the CO2 emissions and fuel consumption of heavy-duty vehicles and amending Directive 2007/46/EC of the European Parliament and of the Council and Commission Regulation (EU) No 582/2011 (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2017-2400",
  "path": "annex/IX/division/3/division/3.2",
  "kind": "division",
  "number": "3.2",
  "heading": "Steering System",
  "text": "For the steering pump power the standard values [W] shown in Table 2 shall be used depending on the application in combination with correction factors:\nTable 2\nMechanical power demand of steering pump\nIdentification of vehicle configuration\nSteering power consumption P [W]\nNumber of axles\nAxle configuration\nChassis configuration\nTechnically permissible maximum laden mass (tons)\nVehicle group\nLong haul\nRegional delivery\nUrban delivery\nMunicipal utility\nConstruction\nU+F\nB\nS\nU + F\nB\nS\nU + F\nB\nS\nU + F\nB\nS\nU + F\nB\nS\n2\n4 × 2\nRigid lorry + (Tractor)\n> 7,5 - 10\n1\n240\n20\n20\n220\n20\n30\nRigid lorry + (Tractor)\n> 10 - 12\n2\n340\n30\n0\n290\n30\n20\n260\n20\n30\nRigid lorry + (Tractor)\n> 12 - 16\n3\n310\n30\n30\n280\n30\n40\nRigid lorry\n> 16\n4\n510\n100\n0\n490\n40\n40\n430\n40\n50\n430\n30\n50\n580\n30\n70\nTractor\n> 16\n5\n600\n120\n0\n540\n90\n40\n640\n50\n80\n4 × 4\nRigid lorry\n> 7,5 - 16\n6\n—\nRigid lorry\n> 16\n7\n—\nTractor\n> 16\n8\n—\n3\n6 × 2/2 – 4\nRigid lorry\nall\n9\n600\n120\n0\n490\n60\n40\n440\n50\n50\n430\n30\n50\n640\n50\n80\nTractor\nall\n10\n450\n120\n0\n440\n90\n40\n640\n50\n80\n6 × 4\nRigid lorry\nall\n11\n600\n120\n0\n490\n60\n40\n430\n30\n50\n640\n50\n80\nTractor\nall\n12\n450\n120\n0\n440\n90\n40\n640\n50\n80\n6 × 6\nRigid lorry\nall\n13\n—\nTractor\nall\n14\n4\n8 × 2\nRigid lorry\nall\n15\n—\n8 × 4\nRigid lorry\nall\n16\n640\n50\n80\n8 × 6/8 × 8\nRigid lorry\nall\n17\n—\nwhere:\nU Unloaded – pumping oil without steering pressure demand\nF Friction – friction in the pump\nB Banking – steer correction due to banking of the road or side wind\nS Steering – steer pump power demand due to cornering and manoeuvring.\nTo consider the effect of different technologies, technology depending scaling factors as shown in Table 3 and Table 4 shall be applied.\nTable 3\nScaling factors depending on technology\nFactor c1 depending on technology\nTechnology\nc1,U + F\nc1,B\nc1,S\nFixed displacement\n1\n1\n1\nFixed displacement with electronical control\n0,95\n1\n1\nDual displacement\n0,85\n0,85\n0,85\nVariable displacement, mech. controlled\n0,75\n0,75\n0,75\nVariable displacement, elec. controlled\n0,6\n0,6\n0,6\nElectric\n0\n1,5/ηalt\n1/ηalt\nwith ηalt = alternator efficiency = const. = 0,7\nIf a new technology is not listed, the technology ‘ fixed displacement ’ shall be considered in the simulation tool.\nTable 4\nScaling factor depending on number of steered axles\nFactor c2 depending on number of steered axles\nNumber of steered axles\nLong haul\nRegional delivery\nUrban delivery\nMunicipal utility\nConstruction\nc2,U+F\nc2,B\nc2,S\nc2,U+F\nc2,B\nc2,S\nc2,U+F\nc2,B\nc2,S\nc2,U+F\nc2,B\nc2,S\nc2,U+F\nc2,B\nc2,S\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n2\n1\n0,7\n0,7\n1,0\n0,7\n0,7\n1,0\n0,7\n0,7\n1,0\n0,7\n0,7\n1,0\n0,7\n0,7\n3\n1\n0,5\n0,5\n1,0\n0,5\n0,5\n1,0\n0,5\n0,5\n1,0\n0,5\n0,5\n1,0\n0,5\n0,5\n4\n1,0\n0,5\n0,5\n1,0\n0,5\n0,5\n1,0\n0,5\n0,5\n1,0\n0,5\n0,5\n1,0\n0,5\n0,5\nThe final power demand is calculated by:\nIf different technologies are used for multi-steered axles, the mean values of the corresponding factors c1 shall be used.\nThe final power demand is calculated by:\nPtot = Σi(PU + F * mean(c1,U +F ) * (c2i,U + F)) + Σi(PB * mean(c1,B) * (c2i,B)) + Σi(PS * mean(c1,S) * (c2i,S))\nwhere:\nPtot Total power demand [W]\nP Power demand [W]\nc1 Correction factor depending on technology\nc2 Correction factor depending on number of steered axles\nU+F Unloaded + friction [-]\nB Banking [-]\nS Steering [-]\ni Number of steered axles [-]",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Substituted by Commission Regulation (EU) 2019/318 of 19 February 2019 amending Regulation (EU) 2017/2400 and Directive 2007/46/EC of the European Parliament and of the Council as regards the determination of the CO2 emissions and fuel consumption of heavy-duty vehicles (Text with EEA relevance)."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/2017/2400/annex/IX/division/3/division/3.2",
    "retrieved_at": "2026-11-01T14:44:20.922900+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}